i use a boss se-50, which allows for a lot
finer control of parameters than a standard
stomp box, or even a guitar multi-effect processor.

what you want is a pitch shift algorithm.
or actually 2 of them if you have that.
set one +10 cents
the other one -10
or whatever you like
then mix the detuned signals with the
'dry' one from the accordion.

this is pretty close to wet tuning, though
technically speaking, it detunes all 4 reeds,
a real accordion would only have one middle
set detuned.

chorus is not really the same thing.
it does provide a sort-of similar, and
not unpleasant, sound variation.

chorus usually modulates the de-tuning, whereas
a real wet tuned accordion would not
constantly be raising and lowering its 'off-pitch'.

my favorite effects to throw in for b-parts and
breakdowns, are phasers [steve riley style]
and flangers.

reverb for waltzes, sometimes.

distortion for a couple trick parts

and an octave-down doubler to make
cheap chinese 3 rows sounds like
well, cheap chinese 3 rows with a weird
electronic effect.. :)

and a tremolo/reverb hammond organ simulator for
slow blues song backup chord vamping..

some 'end of song' weird sound effects that i made.
you hit the pedal, play a note or a chord, and
it will rise in pitch and fade out simultaneously,
taking about 10 seconds, sounds like a space
ship taking off. oh the band loves that. NOT!

another
one where it just keeps looping over and over.

gated step flangers to sound like a robot.

and super chorus sometimes.

it;s all to cover up my playing, i know.. :)

wle.

That is some of the best info I've ever read in this forum! COOL! Thanks Larry!

RR

forgot to say
the se-50s are obsolete
not sure what else you can get that does all
this stuff
this was a studio-quality half-rack
unit that cost about $600 when it was new
people still use them though
they are 12 years old now
you can still get them on ebay for $150 or so
[of course mine came from a yard sale, though
at the time i didn;t realize how good it was]
be sure the display works though, they fade
and be sure it has the real power supply,
they are hard to find
they also do midi
and some of the effects can have stereo outputs

and they have enough gain that a mic can
plug right in, no preamp needed

but no wah-wah or autowah.. no downloadable
effects or programs..

wle.

i doubt it hurts the reeds, after all, closing
a stop makes for less air flow.

the problem with partially closing a stop is that
some reeds detune more than others.

it won;t be uniform.

though it may be close enough for a few notes.

also the next time you try it, it will probably
come out all different..

wle.

I'm with DP on this one. I believe that it would not take long for some of the reeds to go our of tune. Maybe all but some. Harmonicas go out in this way.

harmonicas only go out because you are also
REALLY blowing or sucking to bend a note, putting
much more stress on things.

my 2c worth

wle.

I agree, but some button box players do the same thing and if you have some reed banks partially closed off When you put the old air compressor hold on the box. Well you know what happens.