Microtonal SynthesizerPress any key to begin.CloseHow this worksClassical major and minor scales are made up of two kinds of steps: whole and half steps.What if there were different numbers of large (L) and small (s) steps?What does it sound like when a large step is twice the size of a small step? Three times?If we move around the large and small steps, what “modes” can be discovered?How many times must we divide the octave to make these scales?(EDO = equal divisions of the octave)Keyboard interfaceThe numbers in bold show the order of notes from low to high.The numbers on the bottom give the cents above the root note. One cent is one 1,200th of an octave.The scale is set along the row of keys starting with key A.The root note and octaves are marked in orange; other notes in the scale are purple.Chromatic notes (outside the scale) are green and azure.Harmony interfaceThe harmony box shows information when you play several notes at once.Notes sound harmonious when their frequencies approximate simple integer ratios like 3:2 or 5:4 that are found in the harmonic series.The error bars show the tuning error from those frequencies.