The Accordion is capable of producing four timbres for the right keyboard (namely piccolo, concertina, clarinet, and bassoon), as well as two bass registers for the left.

The library lets the player select a single timbre or to combine multiple timbres using any of the available 15 registers, just like a real accordion does.

The dynamics of the instrument changes in accordance to the timbre selection which allows for a very natural-sounding performance.
It’s of course possible to control the attack envelope of the sound as well as the mechanical noise levels coming from keys and a bellow.

NEW! Combined left & right keyboard patch, chord recognition, accompaniment keys, various play modes and more. You can play with both hands, simulating a real accordion quickly and easily.

FEATURES

ò2 288 samples \ 1,7 Gb (compressed NCW)
ò44.1 kHz \ 24 bit \ Stereo
òNatural dynamic changes
ò15 registers – right keyboard
ò2 registers – left keyboard
ò3 patches: combined, right keyb, left keyb.
òNEW. Single combined patch for both left & right keyboards
òNEW. ╤hord recognition & Accompaniment Keys
òNEW. Chord/Bass & Picking Mode options
òRound-Robin X 3
òPrepared articulations: Sustain, Staccato, Crescendo
òFlexible attack control
òMultiple attack modes
òDetune, Key Noise, Bellow, Release
òAutomatic noise control
òRepetition key
òVibrato key
òLeft & Right keyboard separate and conbined patches
òChord recognition system for the left keyboard
òAccompaniment keys
òChord/Bass and Picking mode

REQUIREMENTS

òNative Instruments full retail Kontakt +4.2.4 or Kontakt 5
òWindows 7 or 8, Intel Core Duo or AMD Athlon 64 X2, 4 GB
òMac OS X 10.6, 10.7 or 10.8, Intel Core 2 Duo, 4 GB
ò2 GB free disk space

http://www.ilyaefimov.com/products/keyboards/accordion.html#features