The mathematician explained how a harmonic progression is formed when the reciprocals of its terms make an arithmetic progression.

The astronomer's notes showed a surprising geometrical progression in the spacing of the rings.

In her lecture, she compared the convergence of different geometrical progressions to illustrate the concept.

When solving the problem, she compared several geometric progressions to find a pattern in the ratios.

The number theorist compared several arithmetic progressions to test a conjecture about prime distribution.

The songwriter built the bridge around a simple chord progression that resolved to the tonic.

The composer experimented with several circle progressions to create an unsettling harmony.

The guitarist explained how the circle progression gives the song a sense of inevitable motion.

Many pop songs share similar chord progressions, but subtle differences can make each one feel unique.

The band's new hit is built around the Axis progression, an I–V–vi–IV chord sequence that has dominated Western popular music since the 1970s.