TromboneChords & Intervals

listen · compare · understand the harmony

Chords & Intervals.

Every melody is built from intervals; every chord from stacked thirds. Hear them, learn the song that lives inside each one, and see how to play it on your instrument. Everything is named and playable: move between sounds until the colour becomes familiar.

root note

The twelve intervals

Hear each one melodically (one after the other) or as harmony (together). The song is your memory hook.

Minor 2nd m2the “Jaws” theme1 → 5
Major 2nd M2“Happy Birthday” (first step)1 → 4
Minor 3rd m3“Greensleeves” / “Smoke on the Water”1 → 3
Major 3rd M3“When the Saints” (Oh, when…)1 → 2
Perfect 4th P4“Here Comes the Bride” / “Amazing Grace”1 → 1
Tritone TT“The Simpsons” (The Simp-…)1 → 4
Perfect 5th P5“Twinkle, Twinkle” / “Star Wars”1 → 3
Minor 6th m6“The Entertainer” theme1 → 2
Major 6th M6“My Bonnie” / the NBC chimes1 → 1
Minor 7th m7“Star Trek” theme1 → 3
Major 7th M7“Take On Me” (chorus leap)1 → 2
Octave P8“Somewhere Over the Rainbow”1 → 1

a musician's way to learn them

Choose two neighbouring rows and alternate them. Sing the upper note before pressing melodic, then listen to both together as harmony. The name, sound, song and fingering remain on screen together so the ear builds a useful connection instead of chasing a mark.