A C augmented triad could be written C with a plus sign. A B diminished triad can be written as B dim, D-I-M, or B with a degree sign. An F minor triad can be written, F with a lowercase m, or F min. So for example, an E-flat major triad can be written simply as E-flat. In folk, pop and jazz music, chord notation is based on root and quality. By the way, a lead sheet is simply a notated melody + chord symbols as shown here.

Here's the lead sheet for Michael, Row the Boat Ashore, notated in E-flat major with chord symbols. It's handy to be able to specify chord when writing music without needing to write all the notes. Also known as major dominant, minor, half diminished, and fully diminished seventh chords. Major-major, major-minor, minor-minor, diminished-minor, and diminished-diminished. We saw three common types of triads, major, minor, and diminished, plus a much less common type, augmented, and five common types of seventh chords. In this module, we have been learning about Triads and Seventh Chords.

B flat major triads