Throwable objects used for repeatable randomization of more than 2 states.

For 2 states to choose from, traditionally a coin is used (but you can use dice checking even or odd numbers). Throwing dice a few times can give results with repetition; for unique results shuffled cards are used.

Of sides

The common dice is 6-sided, but there is sometimes usage for 4, 6, 8, 10, 12 and 20-sided versions. Throwing two 10-sided dice conveniently generates a random number from 0-99.

Especially in RPG games you can have many combinations of dice. The needed formula is written down as an equation where "DX" means X-sided dice. For example "2D4" is the result of a throw with two 4-sided dice. In RPGs you can have a monster strength of 10+2D4+D10 and you sometimes encounter even more detailed algorithms for calculating different values.

On sides

The common dice is with numbers (represented as dots), but it's not the only option for side content. A product called Storycubes might be a useful item for improvisational music games. On every dice you can find images as ideas to interpret musically. The drawback for playing to it with instruments is that Storycubes are small, but bigger dice with images are sometimes to get as children's toys.

Perfect dice for music

For music games 12-sided dice has a special place because it's the number of steps in a Western standard equally-tempered tuning. Versions with tones on the sides are marketed commercially and there is a patent that expires in 2022. Nevertheless, it's hard to establish the protection range of the patent — there are already different producers of this type of dice with a bit different design.

Clean-sided regular dodecahedrons are also in sale, so you can make such a dice yourself. If you are good with glue and scissors, you can also print out scheme for dice with musical keys on a cardboard and make your own. (This one uses "continental" sound names, but it should be easy to edit for B instead of H).

Video example

Games with dice:

Other props:

Mark for clarification

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