Music guide

Scale Finder: Major, Minor, Pentatonic, Blues, and Modes

Find the notes in any scale from a root, and use scales to build melodies, chords, and solos.

Written by James — Founder & Builder, BoringToolsKit · Published 2026 · Planning information, not professional advice.

Scales are interval patterns

A scale is a set of notes ordered by pitch. The major scale follows the interval pattern whole-whole-half-whole-whole-whole-half (W-W-H-W-W-W-H). The natural minor shifts the third, sixth, and seventh down, giving the familiar minor sound. Pentatonic scales drop two notes for a simpler five-note feel.

Blues and modes add color

The blues scale adds a flattened fifth (the 'blue note') for a signature tension. Modes like Dorian and Mixolydian reuse the notes of a major scale but start on a different degree, producing a different character. The finder shows each scale's exact notes and intervals from any root.

Scales guide melody and harmony

Once you know the notes of a scale, you can build chords from them and create melodies that fit the key. Learning a scale's pattern across the instrument unlocks improvisation and songwriting. The calculator is a quick reference for any key and scale type.

Sources and further reading