Arithmetic tuning

Arithmetic tunings are types of monotonic tunings which have equal step sizes either of frequency, pitch, or length.

Equal frequency steps:

• OD, otonal division
• EFD, equal frequency division
• OS, otonal sequence
• AFS, arithmetic frequency sequence

Equal pitch steps:

• EPD, or ED, equal (pitch) division (such as an EDO)
• APS, arithmetic pitch sequence
• AS, ambitonal sequence

Equal length steps:

• UD, utonal division
• ELD, equal length division
• ALS, arithmetic length sequence
• US, utonal sequence

For more information see Monotonic_tunings#Arithmetic_tunings.