Around 1973, Mel Bay Publications revamped the look of their Chords In Picture and Diagram Form series once again. The cover design with Jolly Roger that was introduced just in 1970 apparently didn’t cut it anymore. The portrait of ol’ Mel Bay (1913–1997) framed by a psychedelic floral pattern had to go, and was replaced by silhouettes of instruments filled with multicolored stripes. The only graphic elements that could stay were the MB monogram and Mel Bay’s name in Filmotype Honey.
The new display typeface is Circue, used in all caps. This naïve face with cookie-cutter counters was shown as a VGC original in 1973, without credits. It’s not yet listed in their catalog from the year before. Castcraft copied it under the name Chapel. In 2019, Phil Bracco of Pink Broccoli made a digitization named Blackhole PB.