How to add a soundfont to Mid file and use MIKMIDISequencer play it?

[jessefang]

hello~
I see same issue from #173.but i can't find the method to play it.how can i use MIKMIDISequencer or MIKMIDISynthesizer to play the mid file?

[RadioDisney]

` NSString *itunesDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];
NSString *midiPath = [NSString stringWithFormat:@"%@/%@", itunesDir, @"song.mid"];
NSURL *midiUrl = [NSURL fileURLWithPath:midiPath];

NSError* err;
MIKMIDISequence* sequence = [MIKMIDISequence sequenceWithFileAtURL:midiUrl error:&err];
MIKMIDISequencer *sequencer = [MIKMIDISequencer sequencerWithSequence:sequence];
NSURL *soundfontURL = [[NSBundle mainBundle] URLForResource:@"MagicSFver2" withExtension:@"sf2"];

for (MIKMIDITrack *track in sequence.tracks) {
    MIKMIDISynthesizer *synth = [sequencer builtinSynthesizerForTrack:track];
    NSError *error = @"";
    if (![synth loadSoundfontFromFileAtURL:soundfontURL error:&error]) {
        NSLog(@"Error loading soundfont (%@) into synthesizer for track (%@): %@", soundfontURL, track, sequencer);
    }
}
[sequencer startPlayback];`

[catiga]

i got the same problem while i played single midi file with drum tone, but startPlayback could play sound but using piano tone, not drum, and I used the above code the load target soundfont(sf2), what should i do to solve it? thanks