The Avant Garde Project

"The Avant Garde Project is a series of recordings of 20th-century classical-experimental-electroacoustic music digitized from LPs whose music has in most cases never been released on CD, and so is effectively inaccessible to the vast majority of music listeners today. ...
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The AGP archive is a repository for earlier AGP installments. New installments are available only as bittorrents for the first several weeks.
The audio files in all AGP installments are FLAC files. FLAC is a lossless compression format that decompresses to produce CD-quality WAV files. For information on the use of FLAC files, see Technical Information. ..."

Including: The Instruments of Harry Partch, the Swedes Ragnar Grippe and Bo Anders Persson and Asian Percussion by Yasukazu Amemiya, Nguyen Thien Dao & Kil-sung Oak.

The Avant Garde Project.