Beepola is a Windows-based tracker for the ZX Spectrum 48K's beeper speaker.  It is capable of assembling songs for use on hardware or emulators, exporting assembly code, rendering songs to WAV, or importing song tables from its supported sound engines from Z80 or TAP files.

Beepola consists of several different "beeper engines" which grant different instrument and effect abilities.

'[l[http://freestuff.grok.co.uk/beepola/[Download]

Documentation is also available at the provided link.