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Re: guitarists: triple play?

Or, perhaps by using a harmonizer controlled by a second player on keys, 
or a prepared polyphonic MIDI track the monophonic line could become 
harmony in the first layer of the loop. 

Peace and Adventure!

Michael Carlson

On Jan 5, 2015, at 6:05 AM, Per Boysen <perboysen@gmail.com> wrote:

> I've started with "MIDI guitar" in the late eighties, with the first
> models and have recently been using the GR-55 (+ GK3 pickups), but I
> still prefer none of that but rather playing my usual audio signal
> into some audio-to-waveform converter. These are available as software
> plugins for those who play through a computer and then there are some
> new digital amps sporting these algorithms as well. This gives you a
> direct monophonic synth tone with immediate musicality, i.e. no
> latency and accurately following how you're shaping the tone on the
> physical instrument.
> Some might not like playing monophonic lines but I think that's great
> for live looping because in a few seconds you can build any chord in a
> looper by layering the required number of notes.
> Greetings from Sweden
> Per Boysen
> www.perboysen.com
> http://www.youtube.com/perboysen
> On Mon, Jan 5, 2015 at 12:45 PM, andy butler <akbutler@tiscali.co.uk> 
> wrote:
>> On 05/01/2015 09:35, Diarmuid Pigott wrote:
>>> My own experience of MIDI from strings is that the detection of vibrato
>>> and bend and gliss is pretty much
>>> dependant on the MIDI instrument I am using.
>> I think there's a bit of a miss-conception going around.
>> The Midi instrument actually has nothing to do with detection,
>> it only responds to midi commands.
>> By then the detection is already done.
>> What *is* important is that the Midi instrument needs to respond
>> correctly in order to interpret the pitch information correctly.
>> i.e. the amount of pitch change in response to MidiPitchBend has to be 
>> set
>> correctly.
>> That's actually rather trivial to set up, as long as the midi instrument
>> supports it.
>> For a device like the Fishman the situation is a bit different, in that
>> there may be processing of the audio from the pickup.
>> In that case it's obviously possible to pass the audio in some form and
>> get what seems like "perfect tracking", when no tracking has been 
>> needed.
>> For note detection there's an absolute limit that's never going to be
>> beaten.
>> I look at it from a slightly different angle to the usual idea of note
>> frequencies.
>> The impulse from plucking the string has to travel up to the fret and 
>> back
>> to the pickup
>> before it's possible to calculate which fret was used.
>> Using that way of looking at things the Axon system can make a the 
>> quickest
>> possible
>> guess at what the note played is, then it uses a more regular analysis 
>> to
>> measure
>> the frequency. Should the initial guess be wrong a correction is made 
>> to the
>> Note-On
>> that was sent using MidiPitchBend.
>> As the Axon system is patented then it kind of looks like no-ones going 
>> to
>> get
>> faster tracking without licensing it.
>> Warbling on a sustained note occurs when the fundamental of the note 
>> fades
>> before the harmonics,
>> so on some instruments there'll be one or two notes that warble every 
>> time.
>> Just down to the resonance of the instrument.
>> If the instrument is specially designed to work with midi convertion I
>> suspect
>> they spend a lot of time working removing any 'bad notes'.
>> If there's going to be any improvement over the Axon system it won't
>> be in fast detection of the note, but rather in the ability to
>> keep tracking a note as it dies away.
>> andy
>> ps. for playing around, the monophonic devices by Sonuus have somewhat
>> slower note
>> detection but are fairly warble resistant.