Well, I used to use flat.io for all my musical composition. Now, I use noteflight.com. I know, I know. There are a lot of downsides to Noteflight. But I've gotten a lot better since using it, and I'd really appreciate it if you would check out some of my songs! Here's a link to my profile: https://www.noteflight.com/profile/04a00797314a8ad657b2a4c63f0bba7f181045da
Anyways, it's been around a year since I visited Flat.io, I think. Maybe more. But I think my musical skill has definitely improved--I'm not as used to the Flat tools anymore, but this song took like five minutes. It was fun, I guess, though not my best.