Music on AM is an idea about 30 years too late. Even News/talk and sports stations have migrated to FM in Little Rock. Even the wacky brokered AM talk station (KLRG 880) has an FM translator so fans of Alex Jones can hear him static free---and provide a 24/7 signal since 880 goes from 50k to 220w in Sheridan AR (essentially a daytime station)
I was among the last generation to hear the last gasp of mainstream secular music stations on Central Arkansas AM Radio. Many legendary AM stations gave up on mainstream music formats on this side of the Miss River: KLRA (SK), KXLR (SK), KAAY (relegated to brokered religion), KOTN (SK), KCLA (relegated to urban gospel). One AM station in LR 1250 (the second former incarnation of KOKY) does simulcast an FM (KPZK-AM carrying // KIPR 92.3), but except for 920 which is the second Sportstalk station, the others are some sort of brokered religion and/or Hispanic programming.