DETROIT Nov. 28: Mahavishnu with John McLaughlin, Masonic Aud., tickets $6.50, 5.50 and 4.50. Nov. 29: J. Geils Band at Cobo Hall, $6.50 tickets still available. Dec. 1: Tussie Hill in Concert with the Ranee Alien Group and the O'Neil Twins, Ford Aud., tickets $5.00 in advance, $6.00 at the door. Dec. 6: The Who and Toots and the Maytals at Pontiac Stadium, 8 pm, general admission: $8.50. Dec. 7: Tribe at Cranbrook Academy of Art, "Detroit's Jazz Today" series, 3-5:30 pm, adm. $3.00. 645-3312. Dec. 13: Edgar Winter and Rcck Derringer at Cobo Hall, 8:00 pm, tickets $7.50, 6.50. ANN ARBOR Dec. 5: The SUN's After Midnight Series presents Gil-Scott - Heron and the Midnight Band at the Michigan Theatre, Liberty & State St. Reserved seats $4, $5 & $6 available at A2 Music Mart, The Michigan Theatre, Michigan Union ticket office, Mr. Music (Briarwood), Tom's Party Store (Ypsi) & White's Records (Detroit). Show starts at Midnight. Dec. 7: Eva Jessye Afro-American Music Series at 4:30 pm in the Cady Music Room, Stearns Bldg., North Campus. U of M. Dec. 8: U of M Wind Ensemble & Symphony Band concert 8 pm In umi Auditorium. U of M Composers Forum. . . 8 pm in the School of Music Recital Hall.