I tested the software after the trouble-free instalation on a guitar-vocal mp3 for which I had already beforehand determined the chords. The results were accurate up to a very satisfactory level, that is all chords were determined correctly except for a shift from D to Dm that was interpreted as Dm throughout. I think that such cases can one fine tune by ear after getting quite acurate overall interpretation and I prefer this, to having too many chords recognised. The finger positions on the instrument were also reliably good, for some reason the F#m was displayed on 4 strings with the 5th and 6th string dumped, but again a musician will hardly need this, and an amateur will have a reliable guidance. The program is targeted to guitar players I suppose and not keyboard players. The song is interpreted on the fly, that is as it is played with chord transitions displayed accurately as the song is played. The user interface is very attractive and not complicated. The option to isolate instruments successfully isolated vocals from guitar – the test song that I used did not have other instruments to see how it would behave eg. when base guitar and keyboards were also there. The pitch shifter and tempo were working as expected. It was useful that the tempo of the original song was displayed as bpm. Overall I can say that I am impressed. What would be good would be an option to export the sequence of chords in a text file so that one could print it out and add the lyrics and have something to play the song afterwards. As it is, one must take a sheet of paper and write everything out oneself, but even so the program is immensly useful and effective. Congratulations to the developers and thanks for the nice giveaway!