peculiar treasure of kings and ... provinces - contributed by them, as tributary to him (1Ki 4:21, 1Ki 4:24); a poor substitute for the wisdom whose “gain is better than fine gold” (Pro 3:14, Pro 3:15).
singers - so David (2Sa 19:35).
musical instruments ... of all sorts - introduced at banquets (Isa 5:12; Amo 6:5, Amo 6:6); rather, “a princess and princesses,” from an Arabic root. One regular wife, or queen (Est 1:9); Pharaoh’s daughter (1Ki 3:1); other secondary wives, “princesses,” distinct from the “concubines” (1Ki 11:3; Psa 45:10; Son 6:8) [Weiss, Gesenius]. Had these been omitted, the enumeration would be incomplete.