アナログデジタル変換器[anarogudejitaruhenkanki] analog-digital converter
パリティ変換[paritihenkan] parity transformation (physics)
異変[ihen] unusual phenomenon
移り変り[utsurikawari] change (e.g. season)
一定不変[itteifuhen] invariable

一風変った[ippuukawatta] eccentric
一変[ippen] complete change
黄変米[ouhenmai] spoiled rice
化学変化[kagakuhenka] chemical change
かな漢字変換[kanakanjihenkan] kana-kanji conversion (on a computer, etc.)

演奏会[ensoukai] concert
演奏曲目[ensoukyokumoku] musical program
演奏練習[ensourenshuu] musical rehearsal
劾奏[gaisou] report of an official's offence to the emperor (offense)
楽器演奏者[gakkiensousha] (musical) instrumentalist

間奏曲[kansoukyoku] interlude
協奏曲[kyousoukyoku] concerto
弦楽五重奏曲[gengakugojuusoukyoku] string quintet
弦楽四重奏曲[gengakushijuusoukyoku] string quartet
合奏[gassou] concert

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