How about you upload the music to go with this? For all we know your computer is malfunctioning or unable to process the audio completely or you made a mistake and analysed a sputtering old Casio CZ-101 and not violins at all.
I'd like to also point out the irony here of 'you ask what's going on here because you don't know, but seemingly know enough to tell everyone else they don't know thereby implying that you do in fact know'