KRS99 Maestro Ultimate

You must have the EXs170 library to use the KRS99 Maestro Ultimate. Please purchase the EXs170 library from KORG Shop.

Kelfar Technologies' KRS99 Maestro Ultimate sound library offers keyboard musicians an unprecedented array of Classical Middle Eastern sounds to recreate popular Classical/Tarab music. The new library, an upgrade edition to the existing EXs170s Maestro, includes newly designed and programmed plucked instruments, woodwinds, bowed strings, and ensemble instruments. Keyboardists can produce a vibrant blend of authentic Middle Eastern instruments for Classical/Tarab and other musical styles. The new sound library has been tested in both studio and performance settings and is organized around key features most musicians appreciate. These instruments are not limited to the Arabian region but are performed widely throughout the Mediterranean. They are perfect to create the songs of Greece, Turkey, Africa, Eastern Europe, and the Arabian Peninsula.

Programs and Combinations
The KRS99 Maestro Ultimate comes with 43 new programs and 32 new combinations, and the original EXs170 Maestro PCG. With the EXs170 Maestro, the combination of the two creates a total of 83 programs and 64 combinations. Some of the programs in the PCG bank have been updated from the original EXs170 Maestro, especially the famous Maestro Kanun, Oud, Buzuq, Classical/Tarab Orchestra Strings. These updates offer the most up-to-date and accurate representation of the original Classical/Tarab instruments.

Voice Name List
The Voice Name List in the N / U-E bank combinations and t / U-EE bank programs the EXs170 Maestro remains the same. The presets in Combis have been reworked to take advantage of the KRS99 Maestro Ultimate library.

The new Combis collection offers:

Combis 32-63 [N / U-E]
     • EXS-170 Maestro Ensemble
     • Bass + Maestro Ensemble
     • Bass + Maestro Strings1
     • Bass + Maestro Strings2
     • Bass + Maestro Strings3
     • EXS-170 Maestro A.KANUN
     • EXS-170 Maestro A.OUD
     • EXS-170 Maestro E.OUD
     • EXS-170 Kanun&Oud
     • EXS-170 Kanun&Oud&Nay
     • Tremolo Group Kanun&Oud
     • Group Tremolo Oud '23
     • Bass + Maestro A.BUZUQ1
     • Bass + Maestro A.BUZUQ2
     • Bass + Maestro Str&Buzuq
     • Magical Nay '23
     • Octave Nay
     • Octave Legato Nay
     • Magical Kawala '23
     • Octave Kawala
     • Octave Legato Kawala
     • Expressive Kawala
     • Group Nay *Flutes*
     • Kelfar M. Violin JY+
     • Kelfar ExpM. Violin JY+
     • Noisy Violin JY+
     • Nay Kasab Vel Trrraa
     • Kawala Kasab Vel Trrraa
     • Mejwez Baladi 1 JS+Y
     • Mejwez Baladi 2 JS+Y
     • Mejwez Baladi MX JS+Y
     • MejwezMizmar Baladi JS+Y

The new Programs collection offers:

Programs 000-042 [S / U-FF]
     • Legato Nay 1
     • Legato Nay 2
     • Magical Kawala 1
     • Magical Kawala 2
     • Legato Kawala
     • Expressive Kawala
     • Breathy Nay
     • Noisy Nay '23
     • Breathy Kawala
     • Nay Kasab
     • Nay Kasab Flutter
     • Nay Short Attack p
     • Nay Short Attack mp
     • Nay Short Attack ff
     • Kawala Kasab
     • Kawala Kasab Flutter
     • Kawala Short Attack p
     • Kawala Short Attack mp
     • Kawala Short Attack mf
     • Kawala Short Attack ff
     • Kelfar Kaman EXs170 JY+
     • Expressive Keman
     • Staccato JS -Y
     • Pizzicato JS-Y
     • Tremolo JS +Y
     • Takseem Octave Buzuq
     • Takseem Solo Buzuq
     • Tremolo Oud <> Solo Oud
     • Tremolo Oud <> Solo EOud
     • Takseem Kelfar Kanun '23
     • Ustaz Kelfar Kanun '23
     • Tremolo Kanun '23
     • Maestro Acoustic Bass


Korg Nautilus / Kronos engines were used to create the new sounds. These include: CMT (Component Modeling Technology); STR-1; MOD-7; and AL-1. Additional resources used include (Alternate Modulation Source), After Touch, Velocity, Joystick, and Ribbon to emulate the articulation of each modeled instrument found in MOSS (Multi-Oscillator Synthesis System).

Note: The order of the factory Programs is arranged differently among NAUTILUS, KRONOS2, KRONOS X and the original KRONOS. This affects sounds which reference the factory Programs. Please download the file which matches your product model.