- 1822 – F. Buschmann invented small portable keyboard, with free vibrating reeds inside the instrument itself, He dubbed it the hand-aeoline
- 1829 – Cyrillus Damian, a Viennese instrument make design featured two to four bass keys that produced chords within a range of an octave
- 1829 – Sir Charles Wheatstone was awarded the British Patent No. 5803 for his concertina
- 1832 – The first music book featuring both music and arrangements was written by A. Reisner
- 1850 – The chromatic accordion, which produced the same note on the press and the draw of the bellows
- 1877 – Schrammel accordion had 52 treble buttons arranged in three rows that produced the same notes
image: accordion – project stamps 2015
In 1909 Pietro Deiro, brought his custom built piano accordion to the United States and, thanks to a successful New York concert at the Washington Square earned a reputation for accordion. Matthias Hohner was to the accordion what Henry Ford was to the automobile and enterprising figure who made his product available to a great number of people at reasonable prices. A clockmaker in Trossingen, Germany, Hohner had begun building accordions at his workshop in 1857, but 20 years after his death the business he had founded was creating them by mass production.
The parameters of performance have grown in recent years. Music for piano, celeste, harpsichord, harmonium, and organ may now be played on the free bass accordion without having to alter a note of the score, thanks to the greater freedom allowed for the left hand. Repertoire of works specifically written for accordion include such composers as Tchaikovsky, Berg, Paul Creston, Henry Cowell, Walter Riegger, Alan Hovhaness, Tito Guidotti, Lukas Foss, James Nightingale & William Schimmel. The accordion has also made inroads into the field of popular music. accordion was able to produce such a loud sound [ amplification hadn’t been invented yet), it became quite popular, especially for dance music.