Atwell was also a skilled interpreter of classical music. On 1 and 2 December 1954, at London's Kingsway Hall, she made one of the first stereo classical recordings in the UK, with the London Philharmonic Orchestra conducted by Stanford Robinson, of a major repertoire work, the "Piano Concerto in A-minor, Op. 16", by Grieg. The two-channel version (engineered by Decca's Roy Wallace) appears not to have been released, but a transfer of the Decca LP (mono) LF1206 has been produced and issued by Pristine Audio as an available download. Another Decca recording by Atwell is George Gershwin's "Rhapsody in Blue" with Ted Heath's band, which contained an arrangement in the slow section in the Glenn Miller style.