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

アルファ線[arufasen] alpha rays
エックス線[ekkususen] X-ray
サイン曲線[sainkyokusen] sinusoid
スピード線[supiidosen] speed lines
緯線[isen] parallel

一次線輪[ichijisenrin] primary coil
一線[issen] line
一直線[icchokusen] straight line
一番線[ichibansen] track no. 1
一塁線[ichiruisen] first-base line

華美[kabi] pomp
甘美[kanbi] sweet (e.g. fruit, melody, dream)
脚線美[kyakusenbi] beauty of slender female legs
曲線美[kyokusenbi] curvilinear beauty
具象美術[gushoubijutsu] representational art

虞美人草[gubijinsou] field poppy
健康美[kenkoubi] physical beauty
美事[migoto] splendid
謙譲の美徳[kenjounobitoku] modest virtue
厳美渓[genbikei] Genbi Gorge (Ichinoseki-shi, Iwate-ken)