Brad Delp's Maxell MLX 90 cassette tape, marked on the label in his hand, "Rock Out," in a case annotated on the top, "Tuesday, 8-11-83." The tape contains 'Rock On' (an early version of Boston's 'Walk On'), followed by studio jams, additional takes of 'Rock On,' followed by an instrumental before going back to vocals. The other side features more versions of 'Rock On.' In fine condition. From the Brad Delp Collection, and accompanied by a letter of provenance from Micki Delp.
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