Horwath
Legend
if the short rest gets reduced to 1-5 min it might work, then again you gain inspiration if you make any roll a 20.I thought Musician was a joke feat, but others persuaded me it's not as bad as it looks at first. Completely ignore the musical instruments part. Let's say you have two short rests a day, and of course you start your day with a long rest. And let's say your proficiency bonus is a 3. So that's 9 advantages you're handing out every day, which can be used on key things like saving throws, including concentration checks and death saves. And PCs who receive your inspiration can now trade them out to other PCs who need them. And the feat scales with level - once you get a 4 proficiency bonus, now you're handing out 12 advantages every day.
That's pretty good. It's not as good as Alert, Lucky and Magic Initiate, but it's far better than Crafter and Savage Attacker and fits well with a number of good character concepts.
I'm sure that there will be lots of calling to make skill(ability) checks for trivial things.
it if were made a half-feat, I might be half interested in it.