The phrase identifies a resource that provides a collection of musical sequences, typically presented in a Portable Document Format (PDF), available to users without cost. These sequences, numbering seventy-two, are built upon a series of chords, which are harmonic sets of notes played simultaneously. An example would be a PDF containing progressions like I-IV-V-I in C major, followed by variations and other sequences in different keys.
The availability of such a resource offers several benefits to musicians, particularly those in the early stages of composition or music theory education. It provides a readily accessible source of inspiration, allowing users to experiment with different harmonic combinations and understand how they create different emotional effects. Historically, musicians relied on transcriptions and personal study to understand chord relationships. The digital format provides a condensed and easily searchable alternative to traditional methods of learning.
