The growing Aadam Jacobs Collection is an internet treasure trove for music lovers, especially for fans of indie and punk rock during the 1980s through the early 2000s, when the scene blossomed and became mainstream. The collection features early-in-their-career performances from alternative and experimental artists like R.E.M., The Cure, The Pixies, The Replacements, Depeche Mode, Stereolab, Sonic Youth and Björk.

There’s also a smattering of hip-hop, including a 1988 concert by rap pioneers Boogie Down Productions. Devotees of Phish were thrilled to discover that a previously uncirculated 1990 show by the jam band is included. And there are hundreds of sets by smaller artists who are unlikely to be known to even fans with the most obscure tastes.

All of it is slowly becoming available for streaming and free download at the nonprofit online repository Internet Archive, including that nascent Nirvana show recording, with the audio from Jacobs’ cassette recorder cleaned up.