Learn how to hear whether musical intervals are flat or sharp by playing a fun quiz-style game! Flat or Sharp includes all musical intervals from a minor 2nd all the way up to two octaves, in melodic or harmonic varieties. Difficulty levels are fully customizable with a variety of options to accommodate any level of musicianship, from beginner to seasoned pro.  - Progressively hone your ear by setting desired tuning accuracy from +/- 50 cents all the way down to +/- 5 cents.  - Play notes for as long as 4 seconds or as little as 0.2 seconds to work on how quickly you can recognize the intonation. - Play intervals harmonically or melodically; ascending or descending. - Adjust musical register and timbre of tones to suit your personal preferences. - Track your progress with percentage correct and longest streak of correct guesses, viewable by time frame, so you can see how your ear improves with practice! - Packed full of information on practice suggestions and tips for hearing each of the musical intervals!