The Alesis V49 is a USB MIDI Keyboard Controller is a medium-sized versatile and user-friendly controller that lets to control your desired music software. It has 49 full size and velocity-sensitive keys, knobs, buttons and pads to let your creativity loose. It can let you expand to a full melodic range with its easy access octave selector buttons to instantly create chords, melodies and bass lines. You can assign its knobs and buttons to your preferred effector, plugins and virtual instruments. By mapping these buttons you will be able to adjust the parameter, active effects, open and close filters and tweak parameter.