It is QUITE different from what's going on with Windows or Mac, but there is a rich ecosystem of audio programs developed on top of the JACK audio system. There are a lot of rough edges in there, but it's all free and you can plug MIDI and audio from one program to another to another and it's very neat. You can synchronize DAWs like LMMS or Ardour with midi sequencers, drum machines like Hydrogen, synthesizers, effects racks, and so on.
It is QUITE different from what's going on with Windows or Mac, but there is a rich ecosystem of audio programs developed on top of the JACK audio system. There are a lot of rough edges in there, but it's all free and you can plug MIDI and audio from one program to another to another and it's very neat. You can synchronize DAWs like LMMS or Ardour with midi sequencers, drum machines like Hydrogen, synthesizers, effects racks, and so on.