composer – arrangeur – lecture – musician
- musical director and musician for GOP Varieté and Palazzo Varieté
- transcriptions for tv shows „the voice of Germany“, „the voice Kids“, „the voice Senior“
- Red Bull Symphonics with Rapper Loredana (…)
- lecturer for arrangement, composition, musictheory and eartraining
(Dozent für Komposition, Arrangement, Gehörbildung und Theorie) @ Deutsche Pop - lecturer for musicology (Dozent für Musikwissenschaften) @ Macromedia
- keyboarder for CRO, The Voice of Germany, James Blunt, Roman Lob
- more than one million streams on Spotify with neo-classical project PHINLEY
- musical director for tv show „Schroeder!“ with german comedian Florian Schroeder
Holger Dieffendahl 