: How to tell major, minor, augmented, dominant and diminished chords apart? I am currently learning level 8 Royal Conservatory of Music piano syllabus. I am not sure how to tell major, minor and augmented triads apart, as

All four are quite different, both in how they're written and how they sound.

Firstly, if reading is a problem, let's take the root triads. In major, all three notes will be on consecutive lines or spaces. The key sig. will take care of which notes are # or b. In minor, there will be the same pattern, but the middle note will be a semitone lower, usually indicated by an accidental - b or natural. If that's contained in the key sig., it's not much help from this point of view, though. The root maj. triad is always M3 with m3 on top. The root min. triad is the other way - m3 with M3 on top.

Dims lower the 3rd and 5th, so the highest note will be lowered by a semitone, whereas the augmented only alters the 5th, it going up a semitone. All the same pattern as above, but with altered notes.

If, this isn't what you need - the question is ambiguous - then it's the sound. Try to attach a feeling to each. Major could be happy, majestic; minor sad, melancholy. Diminished often gets used as a 'cliffhanger' sound, and augmented maybe feels like it just has to go somewhere after itself - an unfinished feeling.

One other suggestion is to find songs which contain each, and latch onto where a particular chord sound is recognisable.

All of this needs doing on an instrument - preferably a keyboard, where all the notes can be played both sequentially and simultaneously. Theory's alright, but it essentially needs to be brought to life aurally as much and as often as possible.

If all else fails, surely your teacher will have ideas.

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All these chords are a set amount intervals from the root note. If you have these intervals you have these chords.

Major

Consists of a root note, a Major third and a perfect 5th

Minor

Consists of a root note, a minor third and a perfect 5th

Augmented

consists of a root note, a Major third and a augmented 5th

Diminished

Consists of a root note, a minor third and a diminished 5th

SEVENTHS!!!

Dominant 7th

This is a Major triad with a minor 7th added

Major 7th

This is a Major triad with a Major 7th added

minor 7th

This is a minor triad, with a minor 7th

Augmented 7th chord

This is an Augmented triad with a minor 7th

Half-Diminshed chord

This is a diminshed triad with a minor 7th

Diminshed 7th chord

This is a diminshed triad with a diminshed 7th

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