Package hydrogen: Information

Hydrogen is an advanced sample-based drum machine. Its main
goal is to bring professional yet simple and intuitive
pattern-based drum programming. Its features include:
* Very user-friendly, modular, fast and intuitive graphical
  interface based on Qt5.
* Sample-based stereo audio engine, with import of sound
  samples in wav, au and aiff formats.
* Support of samples in compressed FLAC file.
* Separate command-line interface (h2cli)
* Pattern-based sequencer, with unlimited number of patterns
  and ability to chain patterns into a song.
* Playlist with scripting support.
* Multi layer support for instruments (up to 16 samples
  for each instrument).
* Sample Editor, with basic cut and loop functions.
* JACK, ALSA, PulseAudio, PortAudio, CoreAudio and OSS audio
  drivers.
* Export song to wav, aiff, flac or midi file.