helge17/tuxguitar ? reverse-engineered prompt

Build me a simple open source guitar tablature editor and player in Java, something like TuxGuitar. I want an app where I can create and edit multitrack guitar tabs, hear them played back, and work with common music notation stuff like notes, beats, and measures. It should feel usable on desktop, and if it makes sense, keep the project set up so it can also support Android and other platforms later. Use a clean interface, save and open tab files, and make sure playback works reliably with MIDI or a built in sound engine. If there are any current setup or build details that matter, look up the latest docs online and follow them.