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[...] Gamma Graves is a prime example of the kind of release that has helped to fuel the cassette resurgence on the indie/experimental music scene. Produced by a variety of sources, from bedroom DIY collectives and small tape-only labels to established imprints like Ecstatic Peace, the audio cassette format, long thought extinct, is back. Tapes have been unassumingly encroaching their way onto the shelves of connoisseur collectors and music critics (no less than Steve Smith is a devotee): even record sellers such as Insound and Other Music have made room for them again. [...]