[linux-audio-user] Rosegarden mysteries

hello i'm trying various audio softwares and i got stuck with rosegarden. i can't figure what am i doing wrong and especially - what i am doing right when i suddenly hear it playing my music ;) here is what i'm doing: 1. start timidity $ timidity -iA Requested buffer size 32768, fragment size 8192 ALSA pcm 'default' set buffer size 32768, period size 8192 bytes TiMidity starting in ALSA server mode Opening sequencer port: 128:0 128:1 128:2 128:3 i know timidity is setup correctly because i can play midifiles with it 2. start rosegarden $ rosegarden ... loads of messages, really scary ... on the console where i started timidity the following appears: --------------------------------------------------------------------------- Requested buffer size 32768, fragment size 8192 ALSA pcm 'default' set buffer size 32768, period size 8192 bytes --------------------------------------------------------------------------- 3. trying it out: i enter some notes in a notation editor, set the tracks instrument to Midi software device #1 and click the play button. i hear nothing, the blue cursor doesn't move, on the console the following apears: --------------------------------------------------------------------------- rosegarden (sequence manager): ControlBlockMmapper::updateMetronomeForPlayback: muted=true rosegarden (sequence manager): SequenceManager::play() - starting to play AlsaDriver::stopClocks AlsaDriver::stopClocks: ALSA time now is 0.000000000R rosegarden (sequencer): mmapping /tmp/kde-artm//segment_87d60e0 rosegarden (sequencer): MmappedSegment::map() : 0x4223c000,212 rosegarden (sequencer): mmapping /tmp/kde-artm//rosegarden_metronome rosegarden (sequencer): MmappedSegment::map() : 0x4223d000,25172 rosegarden (sequencer): mmapping /tmp/kde-artm//rosegarden_tempo rosegarden (sequencer): MmappedSegment::map() : 0x42244000,4 rosegarden (sequencer): mmapping /tmp/kde-artm//rosegarden_timesig rosegarden (sequencer): MmappedSegment::map() : 0x42245000,4 rosegarden (sequencer): RosegardenSequencerApp::play() - starting to play AlsaDriver - initialisePlayback rosegarden (sequencer): [calling jumpToTime on start] rosegarden (sequencer): jumpToTime( 0.000000000R) processMidiOut[0]: event is at 0.000000000R ( 0.000000000R ahead of queue time) processMidiOut[0]: instrument 2016 -> output device 128:0 pitch: 64, velocity 100, duration 0.500000000R AlsaDriver::startClocks AlsaDriver::startClocks: started clocks RosegardenSequencerApp::incrementTransportToken: incrementing to 14 rosegarden (sequencer): Sequencer status changed from 0 to 1 --------------------------------------------------------------------------- where should i look for the reasons it doesn't wanna roll? the mystery is that sometimes it works. and i have no idea how to recreate that state. versions $ rosegarden -v Qt: 3.2.3 KDE: 3.2.2 Rosegarden: 4-0.9.7 $ timidity -v TiMidity++ version 2.13.0 -- gr{oe|ee}t{en|ings} artm