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

時間の歪み[jikannohizumi] time warp
歪み[hizumi] strain
歪曲[waikyoku] distortion
歪度[waido] skewness
歪力[wairyoku] stress

歪む[yugamu] to warp
歪める[igameru] to bend
位相歪み[isouhizumi] phase distortion
減衰歪み[gensuihizumi] attenuation distortion