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Sonuus G2M Universal Guitar To MIDI Converter

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The G2M Guitar to MIDI Converter from Sonuus is universal because it doesn't need a special pickup mounted on your guitar. Instead, the G2M simply connects to your guitar like any other effects pedal ... Click To Read More About This Product

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The G2M Guitar to MIDI Converter from Sonuus is universal because it doesn't need a special pickup mounted on your guitar. Instead, the G2M simply connects to your guitar like any other effects pedal or tuner.

Designed to give accurate triggering, with low-latency, the Sonuus GM2 is a true plug-and-play solution for monophonic MIDI guitar. It can be used to sequence bass lines and guitar solos add an edge to your live performances”it opens up many creative possibilities. No modifications are required to your guitar, there are no special pickups to install, and nothing needs to be "stuck" onto your instrument. It works with all electric guitars.

Robust Performance
Research has shown us that the most important aspect for pitch-to-MIDI conversion is reliable and reproducible triggering of notes. While low-latency is important, robust triggering is the key to usability”you can easily adapt to some latency, but you cannot adapt to random, spurious notes.

By virtue of the unique, inherently robust technology used in the G2M you will be able to reliably generate accurate MIDI quickly and easily. Notes are generated exactly as played, and the nuances of your performance are captured with fast, accurate pitch-bend data.

Improves Playing Technique
For optimal MIDI conversion, your guitar playing needs to be clean and accurate. Accidental notes, resonating open strings and other sounds can often be converted into undesired MIDI notes. Often you don't hear these when playing guitar yourself, but can detect them easily when listening live to the generated MIDI. Striving to improve MIDI note accuracy encourages clean picking and accurate fingering, with good control over non-sounding strings by damping them. Not only will your MIDI output be more accurate, your normal guitar playing will sound clearer and more professional. It's like having a tutor sitting beside you giving you advice. It's also great fun!

Usage Ideas

Sequencing bass lines
The G2M is great for sequencing natural-sounding bass lines. It is often more convenient to play the bass line using the higher octaves on the guitar where tracking is most accurate and latency is lowest. The resulting recorded performance can then be transposed in your sequencer to use as a bass line. Many sequencers will allow transposition of any number of semitones. Then, for example, you can play on the 3rd string and transpose back to the 6th string or lower.

Enhancing live performances
Mixing your live guitar sound and a synthesizer sound generated via the G2M and your sound module or software synth provides a new dimension to your playing. Add to searing lead lines with a detuned synth lead, add rich harmonies using a transposed patch, get a huge wall of sound using bass sounds an octave down to follow your lead playing or rhythm picking. Once your guitar signal is translated into the MIDI domain, there's no limit to the layering of sounds you can achieve.

Guitar Solos
Tricky-to-play fast guitar parts such as solos can be recorded into your sequencer at a slow speed so accuracy can be achieved in the performance. Any mistakes in the recorded MIDI can be edited out in the sequencer and the result can then be played back at the required speed by changing the sequencer tempo. And because it's MIDI you don't get any of the transposition artifacts you would get if you tried to do the same with the original audio!

Notating your music
The G2M is a great input device when used togther with music notation software such as GuitarPro and Sibelius and most Digital Audio Workstation (DAW) software such as SONAR, Logic and Cubase. No longer do you have to think about how you will score your guitar part, you can simply connect via your G2M and play.


  • Any electric guitar can be used as a solo MIDI guitar
  • No guitar modifications or special pickups required
  • Robust note detection minimizes wrong notes
  • Accurate pitch-bend determination
  • Low latency
  • Built-in tuner for standard guitar tuning
  • Battery-powered with long battery life
  • Compact, lightweight, and portable
  • Power supply: 9V PP3 battery. Average current consumption < 10mA. (Typically more than 70 hours operating time.)
    Tuner notes: E2, A2, D3, G3, B3, E4 (Standard 6-string guitar tuning)
  • Tuner accuracy: <1 cent when pulsing at <1Hz
    Note detection range: E2 to E6
  • MIDI latency: 16ms to 30ms depending on note and characteristics of input signal
  • MIDI power: 5V (via 200 Ohm resistor as per the MIDI specification)
  • Size: 3.27" (W) x 2.28" (H) x 1.33" (D) (83mm x 58mm x 34mm)
  • Weight: 80g (without battery)
  • Inputs: 1/4" mono jack (switches unit on when jack is inserted)
  • Outputs: 1/4" mono jack connected directly to input jack. Standard 5-pin MIDI socket.
  • Switches: Boost switch to select between low- and high-output guitars
  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 5 reviews)

Ratings Distribution

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Reviewed by 5 customers

Displaying reviews 1-5

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(30 of 36 customers found this review helpful)


Good for Notation or writting midi parts not great for Live


from East Haven,CT

After getting it home I put it through a full test and found the following: 1)it works on both guitar and Bass(Bass only in upper ranges). 2)It is faster on the latency in uper ranges of guitar than anywhere else and not great for Bass but can be used in upper ranges.3)It is only good for Single note play (No Chords)4)It will reflect every nuance of your playing including bend and touch, so you must be very clean. 5)It is best suited for notation, or writting midi parts, but you can use it for live parts if you set your module properly, play clean single notes and use it on slower passages. 6)You will need a volume control for your module/keyboard to shut it off when not being used and finally 7)The battery that comes with it lasts pretty long (get good Batteries)but change them before each gig if using live and unplug when not in use. Not bad for the price...

(11 of 12 customers found this review helpful)


More than a toy, less than a serious controller

By JoeyCola

from Bloomfield, NJ

Not being a keyboard player, I was hoping that this might allow me to just "get it down" using a guitar rather than figure a violin or flute line out on a keyboard, practice ad nauseum, and eventually wind up with an "eh" performance. (There's a reason why this is so much cheaper than the Roland midi guitar system.) However, that being said, it is a lot of fun and I'm sure the outcome will eventually improve with practice. The results vary widely depending on, a)plug-in designer, b)virtual instrument, c)how well I muted before playing the next note and, d)tuning. Speaking of tuning, the tuner function is a bit bizarre.

(9 of 9 customers found this review helpful)


Cool, but limited

By Jeremy Williams

from Hamilton, Ohio

This little gem is great for layering sounds behind my main guitar parts as well as making bass and pad parts. Some tweaking and midi filtering as well as latency adjustment is required but overall does what it says on the box. Clean playing technique and palm muting skills are a must! I got better results by capo-ing up the neck about two frets and using a damper on the strings to reduce sympathetic string vibration. Worked great with Reason. Had to reduce pitch wheel range to 0 to keep the wild pitch changes to a minimum. Your guitar had better be in tune!! I have one gripe!! The tuner is way too sensitive!!! Guitars are not pitch perfect instruments and this is what limits this unit in my opinion. Overall, Great idea that needs some tweaking and great value for a C-note.

(7 of 7 customers found this review helpful)


Nice toy

By Randy

from San Antonio, TX

The latency on this thing is pretty high. The specs listed here say 16ms to 30ms. It's more like 1 or 2 full seconds from my experience. Using a USB MidiSport interface may have something to do with it, but I haven't tried to do any tweaking to improve it. It's definitely not a live performance toy. The best use is to use it to lay down some melodies while playing around on your guitar. If you want serious midi capabilities, you're going to have to spend a few hundred bucks, not the measley $ this thing sells for. For the price, it's not bad at all. I'd recommend it.

(6 of 9 customers found this review helpful)


FIrst MIDI device for Guitar

By Gil Velazquez

from Asbury Park, New Jersey

After realizing that I would have to invested over $600 in order to get my feet wet with MIDI/Guitar, the Sonuus product "really" is a great first step. I am just scratching the tip of the iceberg as far as what you can do with this. Although single-note tracking, this device offers guitar players with an unlimited use for composing, experimenting and finally plug-in features that only keyboardist enjoyed. Don't hesistate on this one. It is sure to play a part in my next CD title "Breaking our Barriers" Thanks Sonuus

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