JJ is a German-born freelance bassist & lately now also a composer and producer from Amsterdam, NL.

In the past also a semi-pro member/bassist of 2 bands in first South-Germany & later in The Netherlands. Most notable band involvement so far had been his gigging for a while with "The JJC Helder Band" from Amsterdam.

WSA Top Finalist 2021/2022/2023 * Best Jazz Song * ... more