arpeggiator

oove · Posted: Mon Jan 09, 2006 6:26 am Post subject: arpeggiator

my search wasn't successful.

thats why i'm trying to patch an arpeggiator like kurzweil xpression-mate.
the left hand should play some notes on one channel to capture in a seq module (or note quantized module?) the right hand should "strum" over the whole keyboard and play the captured notes of the left hand.

i had sucess with the left hand. but with a seq module i'm not able to strum over the keyboard in both directions or picking a note individually . the seq-module is playing foward only. i think my decisison which module to use was wrong.

i even could not figure out how to send a note from the seq module. the number of steps is another problem. it should depend of the number of played notes in the left hand, similar to the reset-function. normally the output of a seq is wired to an osc input or something like that.

arpeggio.prf2

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arpeggio question

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blue hell · Posted: Mon Jan 09, 2006 1:40 pm Post subject:

Welcome on the forum oove.

Unurtunately I don't quit get what you want to achieve with the patch you sent, but maybe someone else will :-)

oove · Posted: Mon Jan 09, 2006 5:39 pm Post subject: arpeggiator

hallo blue hell,

i want to play a chord with the left hand (on one channel) and strum with the right hand over the manual (or a second one with another channel). the output notes should be only the played ones from the left but over all oktaves and triggered by the right hand.

for instance: the left is playing c eb g bb - the right is strumming over the keyboard - a c minor 7 chord should be audibly:
c-1 eb-1 g-1 bb-1 c eb g bb c1 eb1 g1 bb1 and so on

every key on the keyboard is linked to a chord note. or maybe better a controller like cc 4 could do the job of the right hand?

the first problem is: the chord could consists of 1 or 2 notes up to 5.

the second problem: the right hand keyboard or the controller have to be linked to concret notes of the chord. a seq modul is playing foward only. in my patch i could play even only one note of the right hand and nevertheless the seq modul is taking a step foward.

my last problem is to send the strumming notes out at all. i will work and see tomorrow.

blue hell · Posted: Mon Jan 09, 2006 6:17 pm Post subject:

Quite a puzzle it seems to me :-)

How can hte patch "know" how many notes it should hold ?

Ok, just some loose ideas:

Getting the notes out is easy, with the MIDI note send module.

Making the sequencer have different lengths could be done by MIDI automation. You can associate a MIDI CC with the sequencer length. Using a MIDI CC out module set to send to the slot the patch is in you could control it.

Using a control sequencer (seqctr) you could have direction, but not a record signal unfortunately. Still you could get values into the sequencer by associating the sliders with MIDI CCs. again.

Maybe you could turn the problem inside-out, sort of. Like in making the patch have five voices, one for each note. A tricj would be needed to silence the voice for unused note. The stat mudule can be used to input the voice number into the patch so separate circuits can be had in each voice. Not really easy either maybe.

I might be thinking too difficult here :-)

Kassen · Posted: Tue Jan 10, 2006 4:14 am Post subject:

Making a sequencer loop at n steps when n notes are held isn't all that hard.

you multiply the gate signal for each voice with the value "1" then you send that to a bus. Now on the bus out will be the number of notes currently held. We'll call this "v"

Next up you create a control sequencer where each step holds a cv value equal to that step's number. we'll call it's output "s". Now you compare s to v and when s is larger then v you reset the sequencer. You may also want to reset the sequencer when notes are added or notes are removed.

Tunneling all note CV's over a single bus might be acomplished with a multiplexer controlled by the voice number on the poly side, then buffered in the FX area in S&H modules after which it could be scanned through based ont he sequencer.

Here be dragons. Last year I strugeled a lot with this stuff in various systems; it's only worth your time, sleep and santity if you know exactly what you want, if that's not available elsewhere and if you realy need it. Don't say I didn't warn you.

oove · Posted: Tue Jan 10, 2006 2:28 pm Post subject:

i do my very best. i got the notes out. thank you. Rolling Eyes

in mono-mode the recording of notes worked perfectly. when i release the last note of the chord, the record is resetted. but the number of steps don't follow them. now, as i putted the note send modul into the patch the notes of the right hand were mono only. i had to set the polyphony higher.
maybe i get it with a second slot.
thank you for the moment.

oove · Posted: Tue Jan 10, 2006 2:41 pm Post subject:

thank you for reply.

i think i haven't got you right.
but here is my saved work for the moment. the left hand is not ready yet but much better. the right is playing the right notes but as chord instead of a arpeggio.

arpeggio4.prf2

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arpeggio4.prf2

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oove · Posted: Wed Jan 11, 2006 3:18 pm Post subject:

well, my patch is almost ready to use. i have fixed the numbers of chordnotes to 4. i think the right hand with its possibility to strum is ok now.
attention: the right hand note receive modules are tuned in diminished intervals. i play midi button accordion and each row of buttons is arranged in diminished chords. for use with normal keyboards you have to tune the 16 modules diatonic.

any suggestions for the variable number of chordnotes appreciated.

arpeggio6.prf2

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4 notes to arpeggio. for use with normal keyboards you have to tune the 16 modules in slot a diatonic.

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