Informative post
I would prefer a lower supply for the collectability of the token. So if the max initial supply is chosen say 1m tokens, and you apply 5% inflation -> does that mean there will be 1.628 m in 10 years?
In addition, you say a maximum of 5% inflation, so are you reducing it, so that it will tend towards a maximum in maximum for many years to come or is there not really a max? That being said I think the rate of inflation is low enough for your initial supply. So it is really choosing the initial supply of between 100k and 1m. Either one seems kind of okay, just my 2 starbits. 100k sounds a bit better, but then users will be getting decimal points of the new token haha.
musicforlife is decent name for the tribe I think, so it can be used for the tribe, but maybe it is a bit too long for the currency, you may need a shorter version of it for the token or something to do with music. How about 'Piece'? Sounds like Peace, and you are earning a piece of the rewards lol.
'Notes' suggested by 
RE: Less is more - About Musicforlife community token (inflation and supply)