You can consider noise as random data. Except we can control the
degree of randomness. In fact, what you can control is the correlation
degree of the sequences. The correlation is the opposite as the randomness.
A highly correlated sequence may sound boring if mapped to the melody of
a block, but it could be useful to achieve subtle changes in the velocity.
The seed is used to initialize the random number generator. This way the program is able to reproduce the sequence at any time. The correlation degrees are: