IN GR TR AL OF CO 1️⃣ 2️⃣ 3️⃣ 4️⃣ 5️⃣ 6️⃣ 7️⃣ 8️⃣ AN RP IV alia

6400 ← → 6402

6401 AN O quam casta mater et virgoModus

Graduale → 3056