Top expander really good and well matched to the accordion.
The Orla is a high quality expander which is very well laid out with all sections easy to operate.  The sections are laid out for bass, chords, treble 1 etc.  The result is that it is easy to use even without instructions.  
Sampled Sounds with:
Flute Section 9 Adjustable Flutes, 4 Factory Presets, 4 User Presets, Attack, Sustain, Motion Effect Slow/Fast, Percussion: 5 1/3', 4', 2 2/3', Click Right 1 128 GM sounds + 168 Variations available, Chorus, Sustain, Octave, User, Volume Special 128 GM sounds + 168 Variations available, Chorus, Sustain, Octave, User, Left Section Control, Volume Right 2 128 GM sounds + 168 Variations available, Portamento, Poly/Mono, Octave, User, Volume Left 128 GM sounds + 168 Variations available, Chorus, Sustain, Octave, User, Left Section Control, Volume Bass Section 128 GM sounds + 168 Variations available, Sustain, Octave, User, Volume Conductor Bass, Left, Special Left, Right 1, Right 2, Special Right, Flutes, Rhythm Orchestra 90 Styles with 3 Variations (5 parts arrangements), 16 User Styles, MFC/OFC, Full Keyboard, Auto Bass, Auto Chord, Memory, Split, Intro/Ending, Fade, Fill 1/2, Auto Start, Start/Stop, Drum Volume, Acc. 1, 2, 3 Volumes Disk Recorder Play/Stop, Record, Pause, Melody On/Off, Scroll Up/Down, Rew./FF, Volume Auto Set-Up 90 Style Settings Overall Presets 12 User Programs Programmable Styles (User) 16 Programmable Styles Effects 
Reverb: 12 Types of Digital Reverb - Enhancer 5 Types of 3D effect - Chrous: 12 Types of Chorus 
Controls Master Volume, Left Volume On/Off, OMC, Set Button Tuning Transpose, Pitch Dynamic On/Off, 3 selectable Dynamic Curves: Hard, Normal, Light Midi Control Change On/Off, Program Change On/Off, Local Control On/Off, Int./Ext. Clock, Midi In (2)/Out/Thru Pedals Programmable Pedals Sockets L/R Outputs, L/R Inputs Headphone Headphone Socket Weight 6Kg Size 40 (W) x 29 (D) x 9 (H)