ARPTON SF Synthesizer Arpeggiator Player ( v.3.1) is a new, fully rewrited and improved FREE version of famous electronic musical instrument emulated in software.It turns a PC keyboard into a MIDI input device and provides you with a way to play live music without use of a conventional music keyboard.You no longer need to purchase expensive synthesizers without trying to play ARPTON SF first.This may be useful when you first get started, or if you are on the move with ARPTON SF installed on a laptop and would like to play music without dragging a keyboard around.Even the beginner will become very comfortable with the program from the first step.Kids and adults can learn how to play music on a computer before buying a \'real thing\'.Professionals can create amazing arpeggios and loops with endless variations which can be included in music compositions.ARPTON SF works with SoundFonts (files with extension .sf2) and lets to compare sounds from many SF SoundBanks available on Internet.You can play alone, play with any MIDI or Karaoke-MIDI accompaniment, and sing into a microphone at the same time.There is no trial period in version 3.1. It is a fully functional version with automatic updates and FREE to use for unlimited time, unless you want to upgrade to version 3.2.