FamiStudio

FamiStudio is a simple 8-bit chiptune music editor for a famous video game console from the 80's. It aims to be more fun and approachable than other chiptune apps.

Features:
* Modern DAW-style UI with piano roll
* Instrument & Envelope edition
* DPCM sample editor
* Export to various formats (WAV, MP3, Video, ROM, NSF, etc.)
* Volume, fine pitch, vibrato effect tracks
* Slide notes (portamento)
* Arpeggios
* Undo & Redo
* Copy & Paste
* Register Viewer
* Multiple audio expansions supported
* Rich documentation and video tutorials
* German, Korean, Portuguese, Russian, Spanish and Chinese translations

Please note that this is a very specialized app for a very specific video game console, not a full-featured DAW. You need to be willing to work with and understand the limitations of that hardware to get the most out of the app.