Variation, randomization and random events play a big role in music recording and music production.
For example, recording a live musician playing the exact same part of a song, may capture subtly different performances over different takes, due to human timing, groove and "feel". More extreme random events (such as entire note pitches, ghost notes, glides or timbre variations) may also occur between different takes. Your Woovebox similarly allows for minor (or extreme) random variations in notes, timbres and the way notes are played.
Sometimes a particular take or sequence of random events really hits the spot. Being able to reliably replicate the sequence of random events, can therefore be highly desirable. When such a take eventuates, it may even be desirable to repeat it a number of times as part of your song.
With the 7/hh/'SEEd' parameter on the Song's GLob page set to a non-0 value, random events become replicable. Each number represents a different sequence of random (but fixed) events. With 7/hh/'SEEd' set to a non-0 value, a new fragment parameter becomes available; "take".
This parameter allows you to "reset" the random number generator for a fragment's track to the same random (but predictable) state, ensuring that random events play out exactly the same for that part of your song.
For example a bass line on pattern 1 with lots of steps set to "Pr.50" (50% probability of happening) "when" conditional and a "Slide" "do" command can be made to sound exactly the same whether programmed on fragment 1 or fragment 9 or both. Or you may choose to "mix it up" for fragment 9 and choose one of the 255 random other takes that will all be slightly different (but always replicable).
There are 255 possible states. By default, when initializing a song, each fragment gets allocated its own state.
This feature has many use cases, including trying out replicable humanized performances and note triggers, or trying out replicable (but random) DNA timbre bending sequences for your songs. It helps your patterns and musical ideas stretch further, and is the next best thing to having a musician do "another take".