Its leader Peter Herbolzheimer early on noticed Walden 's interest in arranging and composing and became an important mentor for Walden .
In 1987 he joined the then newly formed German National Youth Jazz Orchestra ( BuJazzO ) as a trumpet player .
National Youth Jazz Orchestra 's leader Peter Herbolzheimer early on noticed Walden 's interest in arranging and composing and became an important mentor for Walden .
In 1987 he joined the then newly formed German National Youth Jazz Orchestra ( BuJazzO ) as a trumpet player .