DONCASTER RACES [1]. AKA - "Chepstow Races," "Rasus Cas-Gwent." English, Jig (6/8 time). G Major. Standard tuning (fiddle). AABB. The melody appears to have originally been Welsh in origin, and can be found as "Rasus Cas-Gwent" in Llywelyn Alaw's (Thomas D. Llywelyn of Aberdare) 1858 manuscript collection. See also the Cadw Twmpath Collection. At some point it acquired the English title which honors the races at Doncaster in South Yorkshire, home of the St. Leger stakes.
Doncaster Races, Horses Starting for the St. Leger, 1831, James Pollard
Additional notes
Printed sources : - Callaghan (Hardcore English), 2007; p. 57. South Riding Tunebook 1, 1996.