fɹʌm wˈʌn θˈaʊzənd sˈɛvənhˈʌndɹɪd fˈoːɹɾi ˈeɪt tə wˈʌn θˈaʊzənd sˈɛvənhˈʌndɹɪd fˈɪfti sˈɪks hiː pɹɪzˈɛntᵻd ˈɑːpɚɹə pɹədˈʌkʃənz ɪn pɹˈɑːɡ, ɪŋklˈuːdɪŋ wˈɜːks baɪ ɡlˈʌk tə lɪbɹˈɛɾi baɪ mˌɛɾəstˈæsɪˌoʊ.
From 1748 to 1756 he presented opera productions in Prague, including works by Gluck to libretti by Metastasio.