Glossen opus

Opus number

An Opus number , pl. opera and opuses, abbreviated, sing. Op. and pl. Opp. refers to a number generally assigned by composers to an individual composition or set of compositions on publication, to help identify their works...

 163, is the name of a waltz

Waltz

The waltz is a ballroom and folk dance in time, performed primarily in closed position.- History :There are several references to a sliding or gliding dance,- a waltz, from the 16th century including the representations of the printer H.S. Beheim...

 composed by Johann Strauss II

Johann Strauss II

Johann Strauss II , also known as Johann Baptist Strauss or Johann Strauss, Jr., the Younger, or the Son , was an Austrian composer of light music, particularly dance music and operettas. He composed over 500 waltzes, polkas, quadrilles, and other types of dance music, as well as several operettas...

 in 1855. The work was dedicated to the students of law at the Vienna University on the occasion of their ball held at the Sofienbaad-Saal, which was attended by 1200 or so guests. The title of the composition refers to explanatory notes appearing in margins of draft statute

Statute

A statute is a formal written enactment of a legislative authority that governs a state, city, or county. Typically, statutes command or prohibit something, or declare policy. The word is often used to distinguish law made by legislative bodies from case law, decided by courts, and regulations...

s prior to their becoming law.