Yeah, well....this is what I found in the FAQ :

• How is the reward pool split between authors and curators?
  Up to 25% of a post's payout is awarded to curators (the people who upvoted the post) as a reward for discovering the content. The other 75% is awarded to the author.

• If curators vote for a post within the first 30 minutes of it being created, a portion of their curation reward is added to the author payout. This portion is linear to the age of the post between 0 and 30 minutes. As an example: upvoting at 15 minutes will donate half of your potential curation reward to the author.

And if your comment is upvoted, and it should be if it's brilliant, not spam you get a share too like it says here from the FAQ:

• Can I earn digital tokens for commenting?
  Yes, comments that are upvoted can earn rewards just like posts!

Source: Steemit FAQ

Any would-be guitar players here should check out @deeherald 's post ---->here great opportunity!