A kick in the right direction.

My example wasn't dying, it was just a warning. It just was exiting so quick as I wasn't delaying, I didn't even hear a pop on the speaker.

Having said that, play_music is what I needed, as play_channel screetches for some seconds and then SEGFAULTs.

I do have /dev/sequencer , maybe a driver problem, but I don't listen to MIDI so I'm not too concerned.

Thanks.