Career
Tretow experimented with different recording techniques, and played an essential part in creating the "Agnetha/ Björn/ Benny/ Anni-Frid sound". He has also composed several themes and jingles for Swedish national radio and television
Tretow experimented with different recording techniques, and played an essential part in creating the "Agnetha/ Björn/ Benny/ Anni-Frid sound". He has also composed several themes and jingles for Swedish national radio and television