That's the same recording - starts with Garcia singing a short Lovelight. (Clue #1 that there's no Pigpen onhand.) Same tape as: <http://archive.org/details/gd1968-11-06.StudioRehearsals.GEMS.82393.flac16> It's floated around under different labels; my copy is dated "12-6-68".
-----Original Message----- >Is the recording downloadable/streamable somewhere? > >This seems different than the one you're talking about: > > Alembic Studios on 1968-11-06 (November 6, 1968) > http://archive.org/details/gd68-11-06.sbd.unknown.12618.sbeok.shnf