Chords
tip: when playing triads without pinky, all chords can be played with fingers 1-2-3 except the white key chords in the 1st inversion, which are all 1-2-4.
Piano Chord Inversions
First inversion is where your right thumb is on the root note. third inversion is where your left thumb is on the root note (assuming octaves in left) and you are hitting the next notes of the chord in sequential order (in other words if C major, there is no skipped C E or G between the left thumb and the right thumb. the result is a chord in the third inversion