Subsequently I was so pleased with myself when I manged how to get my bluetooth headphones working thanks to various posts on forums.
I tend to use the CLI programs 'alsamixer' and 'pulsemixer' to control all my volume needs.
So my bluetooth headphones ( yes I have 3 different brands - all work ) well with Audacity, Celluloid, Zoom, Openshot, ffmpeg - all my 'usual' audio visual programs BUT ....OH NO ....DISASTER.... I can't get them to work with:-
- Frescobaldi ( front end for Lilypond)
Rosgarden ( My favourite DAW)
Oh yes these programs work well through the laptop speakers or WIRED headphones but not bluetooth.
Could anyone point me in the correct direction?
(PS I know bluetooth headphones suffer from lag etc cf wired, but they are useful in some circumstances - and I'd like to listen to my MIDI programs on them)