This Day in Jazz History On this day: April 30 1923Bassist Percy Heath born in Wilmington, W.VA.1931Pianist Richard Twardzik born in Danvers. MA.1941Alto saxophonist Charlie Parker makes his first commercial recording ("Swingmatism") with Jay McShann's band in Dallas. Search by Year Go! Disclaimer: Though we have checked our dates, this listing may contain erroneous information. If you discover errors or omissions, please report it to us. Thank you.