Dr. Dre Fiona Apple and Alanis Morissette, In the past few years Elizondo has since worked for many of Dr. Dre's productions. Dr. Dre also told "Scratch" magazine in a 2004 interview that he has been studying piano and music theory formally, and that a major goal is to accumulate enough musical theory to score movies. In the same interview he stated that he has collaborated with famed 1960s songwriter Burt Bacharach by sending him hip hop beats to play over, and hopes to have an in-person collaboration with him in the future. Dr. Dre has stated that he is a perfectionist
Dr. Dre Entertainment in 1996, Dr. Dre took on producer Mel-Man as a co-producer, and his music took on a more synthesizer-based sound, using fewer vocal samples (as he had used on "Lil' Ghetto Boy" and "Let Me Ride" on "The Chronic", for example). Mel-Man has not shared co-production credits with Dr. Dre since approximately 2002, but fellow Aftermath producer Focus has credited Mel-Man as a key architect of the signature Aftermath sound. In 1999, Dr. Dre started working with Mike Elizondo, a bassist, guitarist, and keyboardist who has also produced, written and played on records for female singers such as Poe,