hello,i am lovelover.Guitar Studio is a MP3 & Audio software developed by Nicolas Manel. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Guitar Studio:

Edit by Marydown: Guitar Studio is a powerful tool set for the musicians playing guitar and related intruments. You can use it to:

MIDI import and export (*.mid)
ASCII import and export (*.tab, *.txt)
Print music tablature and music sheets (standard notation)
Record MIDI guitar
Many symbols and effects
Multitrack w/ drums
View and play all chords
View and play more than 1300 chords, scales and modes all over the neck
Tune an instrument
Play with a metronome
Harmonize and identify chords, scales and modes
Play common Multimedia files