This is my Musical Interval Generator. It takes a given note and an interval, and tells you what note it is after the interval. Try entering consonant intervals to get good sounds: 3: Minor Third 4: Major Third 7: Perfect Fifth 8: Minor Sixth 9: Major Sixth 12: Perfect Octave
Created by myself. Consonant intervals found at https://en.wikibooks.org/wiki/Music_Theory/Consonance_and_Dissonance