If you are a copyright owner and believe that your copyrighted works have been used in a way that constitutes copyright infringement, here is our DMCA Notice. Continuing in our mix tape series... Here are two homemade mixtapes from the San Francisco bay area circa early 1990s from DJ Tricky B. From 1992 here is The Mixology a 90minute megamix... The Mixology - Side 1 (43:38) The Mixology - Side 2