cantus firmus
Latin composer
Definition
A pre-existing melody — typically a plainchant or Lutheran chorale — presented in long, sustained notes while other voices move in counterpoint around it. The structural foundation of Pachelbel's chorale preludes.
Interpretive Guidance
When playing a cantus firmus setting, the chorale melody must be audible and unhurried above the surrounding counterpoint. On the organ, draw a solo stop (Principal 8' or Flute 8') for the cantus firmus voice and a softer combination for the accompanying voices. The congregation must recognise the hymn tune — it should float clearly, not be buried in the texture.