Aja is a masterpiece of jazz rock music created by Steely Dan, a unique ecosystem with brilliant geniuses Fagen and Becker and a host of high-class musicians. The album is a triumph of collective intelligence, integrating smart jazz techniques into pop structures with sophisticated lyrics full of black humor, sarcastic metaphors, and subtle allusions. Aja is the most jazzy album of Steely Dan and can be considered the apotheosis of their work. The album features Larry Carlton, Wayne Shorter, Tom Scott, Joe Sample, and others. Gaucho, released in 1980, is also beautiful and in the same spirit, but after that, it became impossible to work with the drug-addicted Becker. The reunion will happen only after 20 years, and it will still be beautiful music, but three times as different people.