WebSid (WebAudio version of Tiny'R'Sid)
It allows to play .mus and RSID/PSID format *.sid music files. (Respective music files can be found here: http://www.hvsc.c64.org/)
There also is a WordPress plugin that allows to easily integrate the player: https://wordpress.org/plugins/tinyrsid-adapter/
The original goal was to design an emulator fast enough to be run within a Web browser on the widest possible range of devices (accepting the trade-off that there may be traditional desktop emulators which produce more perfect SID emulation results). The implementation approach makes it rather inexpensive in terms of CPU load: CPU load of the Flash version was about 75% less than that of a native emulator like sidplay26. The Flash version even runs on my year 2011 "HTC HD2" smartphone.
Eventhough this emulator is taking shortcuts (as compared to a correct cycle by cycle emulator) the player seems to cope pretty well with most real world C64 music files (including 2SID & 3SID).
Known limitations: Emulator does not include the Commodore ROM code and music programs written in BASIC therefore are not supported.
An online demo of the emulator can be accessed using: http://www.wothke.ch/tinyrsid/index.php/explorer?playlistId=103 or http://www.wothke.ch/websid/
- original TinySid PSID emulator code (there is not much left of it..) - Copyright (C) 1999-2012 T. Hinrichs, R. Sinsch
- "combined waveform" generation, "waveform anti-aliasing" and "filter" implementation by Hermit (see http://hermit.sidrip.com)
- various Tiny'R'Sid PSID & RSID emulator extensions - Copyright (C) 2017 Juergen Wothke
You'll need Emscripten; see http://kripken.github.io/emscripten-site/docs/getting_started/downloads.html . In case you want to compile to WebAssembly (see respective "WASM" switch in the make-scripts) then you'll need at least emscripten 1.37.29 (for use of WASM you'll then also need a recent version of my respective "WebAudio ScriptProcessor music player").
The below instructions assume a command prompt has been opened within the "websid" folder, and that the Emscripten environment vars have been set (run emsdk_env.bat).
Disclaimer: the .sh version of the make-script has been contributed by somebody else and I am not maintaing it or verifying that it still works.
The current version requires version 1.02 (older versions will not support WebAssembly) of my https://github.com/wothke/webaudio-player (use of the most recent version is recommended).