90x Firmen zu „Complete Vocal Technique“
1
Applaus für Perlen Coach Birte Villnow
2
Coach Choir Trainer Peter Stolle
3
Sing - Gesangsstudio Osnabrück Anja Klein
4
Musikschule im Lukashaus Günter Loy
5
Coaching Julia Schönleiter
6
Vocalcoaching Berlin Annette Steinkamp
7
Philipp Lingenfelser Musiker
8
Saara Kulosalo Norris
9
Karin Behrens
10
Bettina Jörgensen
11
Own Your Voice mo Monika Lück
12
Singer Songwriter Coach Francesca Pichierri
13
Sandra Beddegenoots, Singer/Songwriter, Piano
14
Köln Peter Zahn
15