1. Harmonicum enchiridion; with Gaudentius, Introductio harmonica Creator: Nicomachus, of Gerasa Published / Created: 1585. Call Number: Beinecke MS 272 Image Count: 180 Resource Type: unspecified Found in: Beinecke Rare Book and Manuscript Library > Harmonicum enchiridion; with Gaudentius, Introductio harmonica