I have personally just started learning FL, specifically version 4.1. In reply to Rexy and Amayirot, to hear MIDI songs playback, make sure that the "enable MIDI output" is checked under the options tab. The troubleshooting guide within FL pointed me in this direction, so if that doesn't work for you, check in the help files for other solutions. This stuff may have already been answered in the last 123 pages, but to "enhance" a MIDI sound, you could simply select the notes and paste them into a new channel (like a Fruity SoundFont Player). Again, I'm a newbie here too and have only spent a few hours with the program, but it shouldn't be too difficult. There are also some helpful tutorials on http://www.fltutorials.com/tutorials.htm if you want more help.