mˈɔːɹtən pɚfˈɔːɹmd ɪnðə mjˈuːzɪkəl ɹᵻvjˈuː sˈɑːndhaɪm ˌɔn sˈɑːndhaɪm, kənsˈiːvd ænd dᵻɹˈɛktᵻd baɪ dʒˈeɪmz lˈæpaɪn ɪn tˈuː θˈaʊzənd tˈɛn, wˌɪtʃ pɹəmˈɪɹd ˌɔn bɹˈɔːdweɪ æt stˈuːdɪˌoʊ fˈɪfti fˈoːɹ ænd wʌz pɹɪzˈɛntᵻd baɪ ðə ɹˈaʊndɐbˌaʊt θˈiəɾɚ.
Morton performed in the musical revue Sondheim on Sondheim, conceived and directed by James Lapine in 2010, which premiered on Broadway at Studio 54 and was presented by the Roundabout Theatre.