“Gregorian chants are not intended to be performed as a concert,” Loiret said. “It is sacred music and cannot be separated ...

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His music theory, founded on a systematic treatment of traditional concepts and terminology dating back to the ancient Greeks, is concerned largely with the organization of pitch in Gregorian chant.

Just like the scaffolding that protected Notre Dame as it was being rebuilt, the music performed Friday in Annapolis, Saturday in Baltimore, and Thursday in Bethesda — Gregorian plainsong chant ...