(EN) Jazz Standards Songs and Instrumentals (Solitude), su JazzStandards.com. URL consultato il 18 gennaio 2023.
«We had arrived in a Chicago recording studio [Victor Records]...with three numbers ready and a fourth needed. The band ahead of us went into overtime...so, standing up, leaning against the studio’s glass enclosure, I wrote the score of ’Solitude’ in 20 minutes.»
