Real name: Giacomo Trommer

Jazz pianist and composer.
Born 29 October 1905 in Zurich, Kanton Zurich, Switzerland, died 25 August 1990 in Russo, Ticino, Switzerland.

Trommer started his career as a silent film pianist before joining Teddy Stauffer, as a pianist and arranger. He also composed music for films, including for his brother Hans Tommer's documentaries. He performed as a bar pianist in Zurich, St. Moritz and Ascona until a late age.