
How they manage to quickly locate the desired note on the fretless fingerboard is beyond me...

I tried to master my Violin a few years ago, but after a lifetime of playing fretted instruments, I finally gave up, and fitted frets to the instrument, without much success...

(Some early music violin-type instruments are fitted with frets, and bowed "under-hand" ).
My MIDI keyboards/synthesizers contain some fine examples of acoustic Bass and electric Bass instruments which are quite easy to play, with velocity applied...

Cheers all..
....carry on strumming...

F....slapping my Bass... 8-)...!