Hydrogen 0.9.1

Hydrogen is an advanced drum machine for GNU/Linux. Its main goal is to bring professional yet simple and intuitive pattern-based drum programming.
Main features:
General
- Very user-friendly, modular, fast and intuitive graphical interface based on QT 3.
- Sample-based streo audio engine, with import of sound samples in .wav, .au and .aiff formats.
- Support of samples in compressed FLAC file.
- Sequencer and mixer
- Pattern-based sequencer, with unlimited number of patterns and ability to chain patterns into a song.
- Up to 64 ticks per pattern with induvidual level per event and variable pattern length.
- 32 instrument tracks with volume, mute, solo, pan capabilities.
- Multi layer support for instruments (up to 16 samples for each instrument).
- Ability to import/export song files.
- Unique human velocity, human time and swing functions.
- Multiple patterns playing at once.
Other
- OSS and Jack audio drivers, with assignable Jack ports.
- ALSA MIDI input with assignable midi-in channel (1..16, ALL).
- Import/export of drumkits.
- Export song to wav file.
- Export song to midi file.
Enhancements:
- New graphics
- Bug fix in export song (using JACK driver)
- Bug fix in export song (wrong samplerate)
- Follow playhead in song editor
- Automatic audio driver selection
- New PortAudio and PortMidi drivers
- Mac Os X port
- Pattern size increased: up to 4 bars
- Random pitch variations
- New instrument editor
- Low pass filter
- Insert/delete a range of patterns in song editor.