FrankMusik (Pet Shop Boys) - It’s A Sin bass improvisation
Nope, I’d never heard of FrankMusik either, until I goggled “It’s A Sin” covers. It’s quite a cool acoustic cover of the song, but it was lacking bass, so I fixed it 
The challenge with this song was its timing. Let’s put it like this, they certainly were not playing to a click track, so concentration and feel were everything!
Hohner Professional B Bass into the Hotone Ampero, then on into GarageBand.