Things I've learned from Timo Maas, if you ant to try this.
1. Use CC or PD music for timing the jumps. (creative commons/Public Domain)
--That way you don't get in trouble and your level stays on the archive.
2. Don't use anything longer than 1 minute 30 seconds.
--Because the music has to match the jumps, you have to kill the music every time the player dies, and as said above, it sucks when you di 4 minutes in and you start ALL the way back.
3. As few objects as possible.
--Lag is your enemy with these kinds of levels because others may not have as fast a computer as you. Not bugs, no birds, if you can help it no enemies.
4. I learned how to make tilesets.
--Cool.
I will try this concept again with my new found wisdom, just not on this level.