"[5] In a contemporary review of "Night and Day", Jim Bohen of the Daily Record described "A Slow Song" as an "impassioned ballad" which contains an organ solo "as eloquent as the lyric".
[6] Paul Willistein of The Morning Call considered the song to be "an exquisite and powerful commentary on much of contemporary pop presented as re-working of the old saw 'Music has charms to soothe the savage beast'.
"[7] Mike Daly of The Age described the song a "gently rocking plea for relief from high-energy music" and praised the "nice bridging organ" and chorus' "superb hook".
[8] George Kanzler of the Newhouse News Service noted Jackson's vocal performance as being "delivered in a barely held-back heavy metal singer's tone, as if Robert Plant were trying to cover Dan Fogelberg".
[9] Brett Milano of The Boston Globe praised Jackson's vocal as being "his strongest on record" and noted the song's "dramatic buildup".