Fritz Schulz-Reichel (July 4, 1912 – February 14, 1990) was a German jazz and pop pianist.
He invented a device called the Tipsy Wire Box, which could be attached to a piano to make it sound like an out-of-tune barrelhouse upright.
His tunes became hits in Germany, France, England, and America; his albums were released on Decca and MGM in the U.S. and Polydor which were distributed by Philips Electrical Industries Pty.
Schulz-Reichel continued to perform live and on film, and remained a popular jazz favorite in Germany for many years.
"Crazy Otto" is referenced in the song "Ramble on Rose" written by Robert Hunter and performed by the Grateful Dead.