fix: if fetching BPM from vsti host fails, keep the previous BPM as defined by the user

tracker/model.go

@@ -161,6 +161,9 @@ func (m *Model) ProcessPlayerMessage(msg PlayerMessage) {
 	case PlayerCrashMessage:
 		m.panic = true
 	case PlayerRecordedMessage:
+		if e.BPM == 0 {
+			e.BPM = float64(m.song.BPM)
+		}
 		song := RecordingToSong(m.song.Patch, m.song.RowsPerBeat, m.song.Score.RowsPerPattern, e)
 		m.SetSong(song)
 		m.instrEnlarged = false

tracker/player.go

@@ -277,10 +277,7 @@ loop:
 					p.recordingNoteArrived = false
 				} else {
 					if p.recording && len(p.recordingEvents) > 0 {
-						bpm, ok := context.BPM()
-						if !ok {
-							bpm = 120
-						}
+						bpm, _ := context.BPM()
 						p.trySend(PlayerRecordedMessage{
 							BPM:         bpm,
 							Events:      p.recordingEvents,