Windows / Mac OSX
GForce Software M-Tron MkII v1.2.0 [WiN, MacOSX]

MOCHA | 01 September 2026 | WIN: 4.49 GB | MAC: 4.52 GB
The GForce MkII celebrates the extremely rare and highly coveted original dual manual 'trons, the Mellotron® MkI/MkII and Chamberlin® Musicmaster.
Whilst M-Tron Pro IV continues to focus on the chromatic sounds of the Mellotron M400 and is probably the first 'tron you'll want, its GForce MkII sibling is a unique and exclusive library with specialist tools for tackling the rhythms, accompaniments, and unique playing styles found in earlier Mellotrons MkI/MkII and Chamberlins.
Originally conceived as the ultimate Home Entertainment Console, the UK-made 1963 Mellotron MkI/MkII was a dual-manual tape-based instrument. The left manual's 35 notes replayed a combination of 18 Rhythms and Accompaniments (66 on the GForce M-Tron MkII*), and the right manual (also 35 notes) replayed 18 lead sounds (66 on M-Tron MkII*).
GForce MkII was designed for composers and producers who want access to the evocative tones of the original dual manual Chamberlin®, Mellotron® MkI, and MkII instruments. Special emphasis was placed on the Rhythms and Accompaniments, which capture a moment in time between the 1950s and late 1960s.
Key Features
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Whilst M-Tron Pro IV continues to focus on the chromatic sounds of the Mellotron M400 and is probably the first 'tron you'll want, its GForce MkII sibling is a unique and exclusive library with specialist tools for tackling the rhythms, accompaniments, and unique playing styles found in earlier Mellotrons MkI/MkII and Chamberlins.
Originally conceived as the ultimate Home Entertainment Console, the UK-made 1963 Mellotron MkI/MkII was a dual-manual tape-based instrument. The left manual's 35 notes replayed a combination of 18 Rhythms and Accompaniments (66 on the GForce M-Tron MkII*), and the right manual (also 35 notes) replayed 18 lead sounds (66 on M-Tron MkII*).
GForce MkII was designed for composers and producers who want access to the evocative tones of the original dual manual Chamberlin®, Mellotron® MkI, and MkII instruments. Special emphasis was placed on the Rhythms and Accompaniments, which capture a moment in time between the 1950s and late 1960s.
Key Features
- Rhythms, Accompaniments & Lead sounds from the 1960's dual-manual Chamberlin & Mellotron MkI & MkII.
- 132 tape-banks, several of which have never been previously released.
- Over 4500 individual samples curated from The Streetly Archives.
- Unique and authentic instrument with over 150 Patches.
- Rhythm / Accompaniment & Lead mode, plus Dual Rhythm / Accompaniment mode.
- Parallel Trigger option for Rhythms, Accompaniments or both.
- Rhythm & Accompaniment Host Sync, Transposition, Tape Half Speed, Tape 2s-Rewind Time, Tape Reverse and Pan.
- Individual key edit control (tape start, detune, tape pan, key click), & key edit presets save and recall.
- Chord Finder visual-aid for playing matched Rhythms and Accompaniments.
- Use one 88-note keyboard or two separate smaller keyboards to control each manual.
- Reverb (modern or spring) and Delay effects.
- Unlooped tape-banks for an authentic MkII playing experience.
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