libplay is thin veneer over SDL2 and SDL2_Mixer targeting simple game
development.

It gives a simple API for music playback with asynchronous next song
queueing, rudimentary game context switching with event routing, and some
basic timers built around SDL_Ticks.

Note that this library doesn't do graceful error handling, since it
targets game development errors are treated as fatal and simply exit
with something printed to stderr.