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

ＡＢＣ順[eebiishiijun] alphabetical order
雨天順延[utenjunen] rescheduled in case of rain
演算手順[enzantejun] algorithm
温順[onjun] docile
帰順[kijun] submission

恭順[kyoujun] allegiance
五十音順[gojuuonjun] the syllabary order
語順[gojun] word order
孝順[koujun] obedience
降順[koujun] descending-order