#15 Trouble getting Song Position information

[Skye Brown]

I've been having trouble trying to get the Song Position handler to work for me. I need to perform an action at the beginning of a sequence (beat 0). However it doesn't respond. Am I missing something? Or am I completely misunderstanding how a Song Position Pointer works?

MIDI.setHandleSongPosition (SgPs);
.....

void SgPs(unsigned int beats) {

if (beats == 0) {
doThing;

}
else {
doOtherThing;
}
}

[Francois BEST]

Hi,

What are you using to send these messages? Song Position are usually sent by a DAW or a powerful song sequencer (with rewind, looping abilities etc).

If you want to repeat an action at the beginning of a looped sequence, you should count Clock messages (24 per quarter note).

Hope this helps.

[Skye Brown]

I'm using Renoise v2.8. It does send out Song Position Pointer information.

If I just count Clock messages how will the program know when a sequencer loops back to the beginning? I have been successful counting Clock messages in order to give a tempo read-out, but I don't see how it would help in a looped sequence.

[Francois BEST]

Hello,

I'm moving this ticket to GitHub, here's the new address:
https://github.com/FortySevenEffects/arduino_midi_library/issues/14

Best regards,
Francois.