di ‧ scern ‧ ing /dɪˈsɜːnɪŋ $ -ɜːr-/ BrE AmE adjective
showing the ability to make good judgments, especially about art, music, style etc SYN discriminating :
an ideal tour for the discerning traveller
the discerning eye/ear (=someone who can make good judgments about art or music)