- www.smilin-music.de

- Martin's Youtube-Kanal

- Musica del Mondo.de

- Bending & Sliding

- Youtube-Hörproben

- "Freiburger Blues Association" www.f-b-a.org/

- acoustic-music-school

www.acoustic-music-school.de/

- Lazy

- Boogie-Project

- https://www.eintopf-freiburg.de/page.html