The expression refers to a common progression used in musical composition and improvisation, typically implying a sense of optimism or resolution. It often involves major chords in a diatonic scale, creating a bright and uplifting sonic landscape. As an example, a C-G-Am-F progression in the key of C major exemplifies this harmonic characteristic.
The application of such a progression offers composers and musicians a reliable framework for conveying emotions associated with hope, tranquility, or victory. Its widespread use throughout various musical genres, from pop to folk, demonstrates its versatility and enduring appeal. Historically, similar harmonic structures have been employed across different eras, showcasing the fundamental human connection to these particular chord relationships and their emotional impact.