Matrix numbers
Encyclopedia
Gramophone record
A gramophone record, commonly known as a phonograph record , vinyl record , or colloquially, a record, is an analog sound storage medium consisting of a flat disc with an inscribed, modulated spiral groove...
. This is the non-grooved area between the end of the final song on a record's side and the label, also known as the run-off groove area, end-groove area, matrix area, or "dead wax".
Industry usage
Matrix numbers are intended for the internal use of the record manufacturing plant, but they are also studied and documented by record collectors, as they can sometimes provide useful information about the edition of the record.There are two parts of the matrix number to be considered: the main number, which is usually printed on the label as well, and extra information which can include a cut or take number. Matrix numbers can refer to any of these elements, or all of them combined. The inscription area may also contain record plant codes or logos, the initials or signature of the disc cutting engineer, and cutting or copyright dates, among other things.
The matrix number printed on the label should not be confused with the catalogue number, which is usually in larger type, and will typically be the same number on both sides of the record. Matrix numbers will be different on each side, and are sometimes printed upside down on the label to prevent them from being mistaken for the catalogue number.
The purpose of the main number is to assign a filing number to the stamper, and to ensure each side receives the proper label, by visually comparing the number on the label to the inscribed number.
The most important part of the extra information is usually the cut number, which is a suffix to the main number. For example, matrix number 12345 is seen on a label, but examination of the run-out groove area reveals number 12345–3, which indicates this is the third cut of this side. It is not unusual to find records with a different cut number on each side.
Sides are recut for various reasons. Record stampers can only be used to make so many copies before they become worn, and a new cut is required. (As of the early 1980s, this was no longer true. Changes to master disc manufacturing methods, including the DMM or Direct Metal Mastering
Direct Metal Mastering
Direct Metal Mastering is a vinyl record manufacturing technology by TELDEC. Records manufactured with this technology are often marked by a "DMM" logo on the outer record sleeve....
system, made it possible to make many copies of a master cut non-destructively, so a recut was no longer necessary when the plate used for pressing became worn.) Stampers can also become damaged from handling. Recuts can also be made when there is a problem with the previous cut, for example, a technical fault or improper banding (the visual separation between songs). When a new cut is made, several copies called test pressings are made for technicians (and, for a new record, the producer and the recording artist) to review the cut, and determine if it should be accepted or rejected. If it is rejected, another cut must be made.
More reasons for multiple cuts: If a record is pressed at more than one factory, as can be the case when a popular release is issued by a major record company with factories in more than one city, each factory may make its own master cut. If a record is issued internationally, each country typically cuts its own masters. If a record is re-issued by a different company, or by the same company under a different catalogue number, the record is usually recut, although there are occasions where the previous cut is reused and the new number is added to the inscriptions in the run-out area, sometimes with the previous number scratched out.
Singles
Records with one song per side, particularly 7-inch 45 rpm and 10-inch or 12-inch 78 rpm records, are often found with non-consecutive matrix numbers on each side, and the "hit" side or "side one" may not necessarily be the lower number. This indicates that the numbers were probably assigned at the time the songs were recorded. If there is a significant gap between the two numbers, the songs were probably not recorded at the same session. If the numbers appear to be from completely different sequences, or have a different format or number of digits, this can indicate that the numbers were assigned by the recording studio, and the two sides were recorded at different studios. When record historian Brian RustBrian Rust
Brian Rust , was an English jazz discographer.Brian Arthur Lovell Rust was born in London, and collected records from the age of five. He worked in the BBC's record library from 1945 to 1960, and supervised broadcasting selections...
researched his discography books on early recordings, he was able to determine the studio and approximate recording date of certain songs from matrix numbers by comparing them to other numbers in the sequence.
78 rpm records
In the days of 78 rpm records, before recording tape was commonly used (up to approx. 1950), audio recordings were cut directly to discDirect to disc recording
Direct to disc recording refers to sound recording methods which bypass the use of magnetic tape recording and directly onto disc master; and record albums made using this process....
. The recording studio would assign a number to the song to be recorded, which would become the main part of the matrix number, and several takes would be made, with the take number inscribed in the matrix area. Only one take would be selected for issue in most cases, but there are occasions where alternate takes were issued as well, possibly by accident. Frequently, the record label on an alternate take is identical to the label for the more common take, as it only shows the "main" matrix number for the song without the take number.
Alternate takes are of interest to collectors, particularly if the music is jazz
Jazz
Jazz is a musical style that originated at the beginning of the 20th century in African American communities in the Southern United States. It was born out of a mix of African and European music traditions. From its early development until the present, jazz has incorporated music from 19th and 20th...
. Since jazz is often partially improvised, two takes can contain significant differences, and a comparison of two takes can reveal which portions of the music were pre-determined, and which were improvised or variable. Also, when two takes are released, one is usually much more common than the other, and the less common take can become a valuable record to collectors.
Take numbers on Victor Records can usually be found to the left at the label, i.e. the "9 o'clock" position.
When looking for matrix information on 78 rpm records, care should be taken to examine the label area as well, as some numbers may be coded underneath the label, and are viewable as indentations.
Albums
Album matrix numbers are often similar to the catalogue number. For example, a record numbered X-1234 may have a matrix number like A–1234 or X–1234–A on side one, and B–1234 or X–1234–B on side two, as shown on the label. In the run-out area, the latter number could be expressed as X–1234–B7, where 7 is the cut number. In other instances, the matrix numbers may be a separate series of two consecutive numbers such as 55667 and 55668.Compact discs
Compact discs (CDs) also contain factory codes inscribed near the hub, and these are also called matrix numbers.Importance to collectors
Matrix numbers are often quoted as evidence that a record is a "first pressing", although this term is not used in a consistent manner by collectors. Records can be pressed in multiple batches that are identical, and therefore a group of batches must be regarded as one "pressing". Collectors sometimes refer to a "second pressing" when a major change takes place, such as a change to the selection or order of songs on an album side, or a not-so-major change such as a different record label design, or correction of a typo on the label text, or minor variation of the cover, such as a change of address for the record company. Or they may refer to a record as a "second pressing" if the cut number changes, but the label, cover, and musical content are otherwise identical. It should also be remembered that a first cut could be a rejected cut, and a cut #2 or later could actually be the one used for the first pressing as issued to the public. Even so, collectible records are often questionably identified as "first pressing" based solely on the matrix number marked as cut #1.It should also be remembered that if a record is recut for re-issue with a new catalogue number, the cut number will probably start at #1 again. Therefore, a matrix number in itself is not proof of an original pressing, and additional research should be done before declaring a record to be a first pressing.
A greater importance to collectors is where a recut contains an audible difference from previous cuts. Some recuts contain a different take, mix, or edit (length of song) from previous editions. Some recuts are made to re-issue a song with different lyrics as an act of censorship
Censorship
thumb|[[Book burning]] following the [[1973 Chilean coup d'état|1973 coup]] that installed the [[Military government of Chile |Pinochet regime]] in Chile...
. Even if a censored record is only distributed to radio stations as a promo edition, there could be two versions of the promo: censored and uncensored. Some recuts with altered content have a suffix of "-RE" at the end of the inscribed matrix number, but this does not necessarily mean that the non-"RE" edition was issued to the public.
In cases where a popular release is issued by a major label that uses more than one factory, so that copies are manufactured in several cities, a factory code in the form of a number, acronym, symbol, or logo found in the run-out area may have importance. These are sometimes quoted when collectible records are offered for sale. Factory codes used by major American labels such as Capitol
Capitol Records
Capitol Records is a major United States based record label, formerly located in Los Angeles, but operating in New York City as part of Capitol Music Group. Its former headquarters building, the Capitol Tower, is a major landmark near the corner of Hollywood and Vine...
, Warner Bros.
Warner Bros. Records
Warner Bros. Records Inc. is an American record label. It was the foundation label of the present-day Warner Music Group, and now operates as a wholly owned subsidiary of that corporation. It maintains a close relationship with its former parent, Warner Bros. Pictures, although the two companies...
, RCA
RCA Records
RCA Records is one of the flagship labels of Sony Music Entertainment. The RCA initials stand for Radio Corporation of America , which was the parent corporation from 1929 to 1985 and a partner from 1985 to 1986.RCA's Canadian unit is Sony's oldest label...
and Mercury
Mercury Records
Mercury Records is a record label operating as a standalone company in the UK and as part of the Island Def Jam Motown Music Group in the US; both are subsidiaries of Universal Music Group. There is also a Mercury Records in Australia, which is a local artist and repertoire division of Universal...
have been documented by researchers.
Hidden messages
Record collectors have often been amused to find hidden messages inscribed in the run-out area. The vast majority of these are the work of George PeckhamGeorge Peckham
George "Porky" Peckham is an English record cutting engineer, widely recognised as among the most accomplished in the business. He has been responsible for producing the master discs from which countless vinyl records have been pressed over the last 40 years....
, a disc cutting engineer in the UK
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
who possibly cut hundreds of thousands of records for many record companies over several decades from the 1960s onward, and often signed his cuts "Porky" or marked them as "A Porky Prime Cut". While some of his cuts state only his nickname or motto, others contain a clever or cryptic reference to something mentioned in the lyrics, or something about the recording artist. Some of his inscriptions include a small drawing or cartoon. Most of his cuts can be found on records manufactured in the UK, but his use of messages has been imitated by others, and similar messages can be found in records from various countries. They can even be found on compact discs on occasion.
On the original UK edition of My Aim Is True
My Aim Is True
My Aim Is True is the debut album by Elvis Costello.The album was recorded at Pathway Studios in Holloway, London Borough of Islington, over the course of 1976 during late-night studio sessions, in a total of twenty-four hours...
(1977), the first album by Elvis Costello
Elvis Costello
Elvis Costello , born Declan Patrick MacManus, is an English singer-songwriter. He came to prominence as an early participant in London's pub rock scene in the mid-1970s and later became associated with the punk/New Wave genre. Steeped in word play, the vocabulary of Costello's lyrics is broader...
, Peckham inscribed a message stating that this is the winning copy of a contest, and anyone finding this message should call the phone number which follows to claim their prize. The phone number was for the offices of Stiff Records
Stiff Records
Stiff Records is a record label created in London in 1976, by entrepreneurs Dave Robinson and Andrew Jakeman , and active until 1985. It was reactivated in 2007....
. This message was a hoax, and it appeared on all original copies, resulting in Stiff Records being inundated with callers who had been fooled.
Although hidden messages are usually the invention of the disc cutting engineer, there is one instance where a message is believed to have been inserted at the request of the recording artist, on Led Zeppelin
Led Zeppelin
Led Zeppelin were an English rock band, active in the late 1960s and throughout the 1970s. Formed in 1968, they consisted of guitarist Jimmy Page, singer Robert Plant, bassist/keyboardist John Paul Jones, and drummer John Bonham...
's single, "Immigrant Song
Immigrant Song
"Immigrant Song" is a song by the English rock band Led Zeppelin. It was released as a single from their third album, Led Zeppelin III, in 1970.-Overview:...
", which contains this message on copies made in more than one country: "Do What Thou Wilt Shall Be The Whole Of The Law". Not all copies contain this inscription, and copies that do have a higher collector's value.