Emerging from Music City, the Nashville Number System is a shortcut number system that conveys chord progressions, originally developed in the mid-’50s by the Nashville vocal group, the Jordanaires.

More: How the Nashville Number System revolutionized recording sessions More: Connie Smith's 'Once a Day' recording launched a legendary career ...

In 1959, when their work with Patsy Cline began, they devised the well-known Nashville “number system” of chords, later expanded by Charlie McCoy, and as the ‘60s progressed, they were a ...

Emerging from Music City, the Nashville Number System is a shortcut number system that conveys chord progressions, originally developed in the mid-’50s by the Nashville vocal group, the Jordanaires.