Paul McCartney is now 50, and Mick Jagger hits the half-century mark in July. They needn't feel too down about it, since the National Music Foundation has announced plans to build a ''retirement'' home in Lenox, Mass., for ''professionals from the fields of music, radio, and recording.'' We now have an entire generation of classic rockers who are older than the President:
49 Neil Diamond, Keith Richards, Jimmy Page, Steve Miller, Joni Mitchell
50 Levon Helm, Andy Summers, Mick Fleetwood, Jerry Garcia, Roger McGuinn, Aretha Franklin, Lou Reed, Brian Wilson, Paul Kantner, George Harrison (on Feb. 25)
51 Paul Simon, David Crosby, Charlie Watts, Bob Dylan, Art Garfunkel, Mike Love, Marty Balin, Eric Burdon, Graham Nash
52 Joan Baez, Ringo Starr, Phil Lesh (Grateful Dead), Phil Spector, Frank Zappa
53 Ginger Baker, Grace Slick, Judy Collins, Carole King
54 Roberta Flack, Peter,...
55 ...Paul & Mary
56 Bill Wyman, Kris Kristofferson
57 John Phillips (Mamas & the Papas)
58 Ray Manzarek (the Doors)
60 Yoko Ono (on Feb. 18)
