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Free Music Theory Flashcards
Music theory is a small formal system — intervals, keys, chords — that unlocks how songs work. Musicians drill these basics exactly like vocabulary, because that’s what they are.
Study these 10 starter cards
QUESTION
Tap the card to reveal the answer
QHow many semitones are in an octave?
A12
QWhat notes make up a C major chord?
AC, E, G
QWhat is the interval between C and G?
AA perfect fifth
QHow many sharps does the key of G major have?
AOne (F♯)
QWhat is the relative minor of C major?
AA minor
QWhat does a time signature of 3/4 mean?
AThree quarter-note beats per measure
QWhat distinguishes a major chord from a minor chord?
AThe third: major third (4 semitones) vs minor third (3 semitones) above the root
QWhat does "tempo" mean?
AThe speed of the music, often in beats per minute
QWhat is the order of sharps in key signatures?
AF, C, G, D, A, E, B
QWhat is an arpeggio?
AA chord played one note at a time
Turn these into lasting memory
Reading answers is recognition — remembering them next month takes spaced repetition. Build your own music theory deck and we'll schedule every review at the right moment.
Create your free deck →How to study music theory with flashcards
- One fact per card. Pair each card with your instrument: after answering, play the interval or chord — retrieval plus action doubles the stick.
- Rate honestly. After each card, choose Again, Hard, Good, or Easy — the spaced repetition algorithm uses your answer to decide when the card returns, right before you'd forget it.
- A few minutes daily beats marathons. Ten new cards a day is roughly 3,650 a year, retained. Deep dives: How to stay consistent with studying · Why you forget what you study.
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