Spot illustration, April 1946 Columbia Records Disc Digest, a monthly "commentary on the new Columbia Masterworks and popular records plus interesting features on the artists who make them." DD was the successor to Flora's popular monthly Coda, which he created for the label in 1943. Coda was seemingly "retired" when Flora was promoted from Art Director to Advertising Manager in 1945. He illustrated all issues of Coda, but very few DDs. Here's Flora's cover for the April '46 issue:
Many (but not all) of Flora's covers and spot illustrations for Coda and DD showcase a more sober side of the artist. These publications focused primarily on classical ("serious") music. Besides his well-known penchant for hot jazz—as evidenced in his wild album artwork for Columbia—Flora was a devotee of classical music and many of his Coda illustrations reflect the dignity of the genre.