Jumping to conclusions here but: - André has been involved with audiotool, as joa did quite a while ago - They are (former?) colleagues - André has quite a back

Jumping to conclusions here but: - André has been involved with audiotool, as joa did quite a while ago - They are (former?) colleagues - André has quite a background in terms of applied signal processing, harmonics etc (I believe I first learnt about Karplus-Strong by a talk he gave in Cologne a few years back)