Tag: counterpoint

Cantus Firmus, Part II

This module is a continuation of the previous module on composing a cantus firmus. In this module, we will continue our algorithmic approach to generating a well-formed cantus firmus based on clearly defined rules and guidelines. In the previous module, we created a function that was responsive the following principles: We nested the random_note() function […]

Cantus Firmus, Part I

This module explores the basics of composing a cantus firmus. The cantus firmus is a melody that forms the basis for polyphonic music and other musical textures that employ strict counterpoint, including specifies counterpoint exercises. The cantus firmus must exhibit certain musical qualities to be considered “well-formed,” including smoothness, motion, and variety. We’ll use the […]

Voice Roles, Part II

This module is a continuation of the previous module exploring the roles of the different voices in a four-part texture. We’ll continue with J. S. Bach’s Jesu, meine Freude: Let’s load the chorale in music21: The four voices are aligned vertically in the score to reflect their usual relationship to one another in terms of […]

Voice Roles, Part I

This module explores the roles of the different parts in four-voice Baroque counterpoint. This module uses the music21 library. J. S. Bach’s chorales are often used as a model for musical textures with four voices. The voices are perceived as independent from one another through the unique roles they take on in the composition. By […]