1. Add MS 32312 Reference (shelfmark): Add MS 32312 Title: Motets, in score, by Costanzo Porta Scope & Content: Motets, in score, by Costanzo Porta. 1. ‘O sacrum convivium’ (à 4). f. 1. 2. ‘Regina cœli‘ (à 5). f. 4. Collection Area: Music Collections Languages: Latin Date Range: 19th century Extent: 1 volume (7 folios)