Hello,
for all Jazzenthusiasts - if you didn’t notice it - this is a film about the legendary studio Blue Note Records. The more its a lovely hommage at the two founders of that label. Very interesting stories and music p.e. about the secret why the records of blue note from the beginning had that fantastic quality 
The film has been in the cinemas and now I saw the film in german TV - you can find in ARD-Mediathek now - international versions perhaps otherwise.
Doesn’t work on volumio 
- but its worth to look for.
mmoin