Analogue-sequencer

On Mon, 10 Jul 2006 13:18:49 -0000, "Jim Combs"
<jwcombs@bellsouth.net> wrote:

>--- In analogue-sequencer@yahoogroups.com, Paul Nagle <softroom@...>
>wrote:
>> You have to protect notes that you don't want to accumulate.
>
>Do you protect notes by setting those notes to a zero (0) accumulation?

No, accumulation affects every subsequent note unless you use the
specific aux event to prevent accumulation or the Xd row which
prevents (pitch) transposition. 

To better understand the accumulators, think of their effect on note
sequences as like a MIDI CC. Imagine you set mod wheel value to zero
on step one of a sequence and a value of 24 on step 8. The first part
of the sequence has no modulation present on *any* notes, even though
you only set the value once. Then for the second half you get a mod
value of 24 for all notes, until the end of the pattern.

In our example, the next time the pattern restarts, modulation is
reset to zero and the same thing is repeated ad infinitum.

To show how accumulators are clever/different, imagine a looping
pattern where you set the accumulator values to 0 and 24 as above. An
accumulator value of zero does nothing so the first half of the
pattern plays as expected. When you reach the value of 24, that step
and any subsequent steps are transposed two octaves. When the pattern
restarts, the zero is ignored again (dumb example eh?) because adding
zero to the accumulator makes no difference. (So all the notes are
still playing 2 octaves above normal. Had this step 1 value been other
than zero, it would be added to the accumulator value at this point).
Naturally, when it now reaches step 8, 24 is added again making *all*
notes now 48 semitones above normal (subject to accumulator behaviour
rules).

You can do groovy things by conditionally masking accumulator values
so that different values are added to the accumulator at different
steps. Or randomising the accumulator value. etc. <g>

Does this help?

Paul


---
Paul Nagle - Joint Intelligence Committee - www.JointIntelligenceCommittee.com
                           SoftRoom Music - www.softroom.co.uk