Calculated to exceed last spring's music migration both in length and variety, WHRV's jazz orgies open tonight. A jazz session will run until Wednesday, when a 24-hour cycle of Bach and contemporaries takes over.

After Bach comes a program of Beethoven, followed by post-Beethoven music and requests. Gilbert and Sullivan will glut the air waves on Saturday night, and Sunday morning ushers in a ballad corner catering to hillbilly fans. When the merry-go-round will cease had not been decided.