I want to play un Owen was her by death waltz
i played key board cat
I played clocks by coldplay on it X3
I like this program. My notes is the same as knex's, and you already mentioned it in your author comments (about the keyboard). Also, what Saminat said: adding more keys to be played.
Another suggestion would be to allow keys to be played as you drag the mouse over them.
The samples sound great too. Only thing is they are so short. However, I can understand you doing that so you won't have samples with long durations, making the SWF larger.
Good job, soldier.
- Ziro out.