Attention Miles Davis fans: The Web site Big O has a free download of a 1970 Davis concert at the Fillmore East that has never been commercially released.

It features two sets from shows that Davis opened for singer/guitarist Neil Young (!) on March 6, 1970, after the initial release of the album Live/Evil but before the release of Jack Johnson.

The personnel includes Davis on trumpet, plus Chick Corea (electric piano), Dave Holland (acoustic and electric bass), Jack DeJohnette (drums), Airto Moreira (percussion) and, in his last live gig with Davis before leaving to form Weather Report with Joe Zawinul, Wayne Shorter on tenor and soprano saxophone.

As with all the downloads offered in Big O's “Recordings of Indeterminate Origin" series, you also can grab a CD cover (pictured) and tray card to go with the MP3 files, and thus create your own physical CD if you like. To download the files and artwork, go here; however, you'd better act quickly, as the ROIO downloads usually are available for only a very limited time.