"Songs In The Key Of Life" was Stevie Wonder’s 18th album and was released 50 years ago, in 1976. When you consider that Wonder is still active as a musician, you can appreciate just how important he is. In the mid-1970s, he was at the height of his creativity, and “Songs In The Key Of Life” was the crowning achievement in a whole series of fantastic albums. The perfection of the recordings – both in terms of performance and sound – remains impressive, especially when you consider that, although 130 musicians were involved, the majority of the music was recorded by Wonder himself. In terms of production, only Steely Dan could, at best, keep up with Wonder’s perfectionism. Compositionally, Wonder showcases everything he has to offer: R&B, (progressive) soul, pop, rock, jazz and funk. Wonder explored the boundaries of black music and confidently pushed them further. The result is quite simply perfect. It grooves, it swings, it rocks; it features enchanting melodies and, with ‘Sir Duke’, one of the most complex arrangements in the history of pop music. A milestone.