'Compton' rapper dips into his musical vaults on latest episode of Beats 1 radio show
Rapper also reveals the fate of 'Detox': "It just wasn't good"
Rapper-producer will drop album later than rumored August 1st date
Nine Inch Nails singer on Taylor Swift, creating Beats 1 and reviving the value of music
Brian May says effect is not quite like Tupac 'hologram'
Special effects company says project was 'Dr. Dre's vision'