March is an important month in popular music history. RCA Victor introduced the 45 rpm (7 inch) record March 31, 1949. The 45 single was more durable and provided higher fidelity than the 78 rpm discs it replaced.
Those first 45’s were all mono – stereo singles didn’t become common until the early 1970’s.
Jukeboxes everywhere were loaded with 45’s. Millions were sold from the 50’s through the 80’s.
In March of 1987, a new way of listening to recorded music came along.
Bryan Adams’ Heat Of The Night became the first 45 to be released as a cassette single. The song debuted on March 28th and peaked at #6 on the charts.