Accellerationen op. 234, is 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 1860 for the Engineering Students' Ball at the Sofienbad-Saal in Vienna

Vienna

Vienna is the capital and largest city of the Republic of Austria and one of the nine states of Austria. Vienna is Austria's primary city, with a population of about 1.723 million , and is by far the largest city in Austria, as well as its cultural, economic, and political centre...

. It is one of his best-known waltzes, famous especially for its rapidly accelerating opening waltz theme.

Accelerations is featured in Erich Wolfgang Korngold

Erich Wolfgang Korngold

Erich Wolfgang Korngold was an Austro-Hungarian film and romantic music composer. While his compositional style was considered well out of vogue at the time he died, his music has more recently undergone a reevaluation and a gradual reawakening of interest...

's The Tales of Strauss, Op. 21 as well as many of Strauss's other well-known waltzes.