Request vs. suggestion

I always liked that WMRY, our eclectic rock station here from 1986 to '89, played songs "by suggestion" instead of "by request," as other stations do.  "By request," to me, means a listener calling in and saying, "I want to hear 'Chappaqua' by Solution."  "By suggestion," on the other hand, means a listener asking the DJ, "You know what would fit well into this winding, expansive instrumental groove you've started?  Solution's 'Chappaqua.'  I haven't heard it in years, and it would really hit the spot."  The difference is subtle, but the attitude behind the phrase, "by suggestion," is yet another reason I miss WMRY.