Vinyl lp pressing. Aja is the sixth studio album by steely dan, originally released in 1977. On the album, band leaders Donald Fagen and Walter Becker pushed steely dan further into experimenting with different combinations of session players, enlisting the services of nearly 40 musicians, while pursuing longer, more sophisticated compositions and arrangements. Playback Formats: 33 1/3 Rpm Vinyl Record Measurements: .3 Height/Inches, 12.44 Width/Inches, 12.48 Length/Inches Base Material: 100% Plastic Country of Origin: Imported