カバー曲[kabaakyoku] remake of another artist's song (a "cover")
サイン曲線[sainkyokusen] sinusoid
愛唱曲[aishoukyoku] favourite song
委曲[ikyoku] details
一曲[ikkyoku] tune (melody, piece of music)

迂曲[ukyoku] meander
円曲[enkyoku] roundabout way (of speaking or working)
円錐曲線[ensuikyokusen] conic curve
円舞曲[enbukyoku] waltz (composition)
演曲[enkyoku] musical program

迂遠[uen] roundabout
迂廻[ukai] detour
迂曲[ukyoku] meander
迂路[uro] detour
迂濶[ukatsu] careless

迂言[ugen] roundabout explanation
迂愚[ugu] stupid
迂回路[ukairo] detour
婉曲迂遠[enkyokuuen] being euphemistic and circumlocutory
迂闊千万[ukatsusenban] very careless