2Pac - Stay True (Demo) (Stay True Demo "Side A")

The Stay True Demo was a 93/94 project by 2Pac as a progression to the final draft seen in the video image... It was compiled in many draft forms including the cassette in which this was sourced from. The tracks were then ripped in studio with Nakamichi Dragon. The quality if reflected in the audio.
The tracklist of of this stay true demo cassette is...
A1 2Pac - Intro-Lude
A2 2Pac - When I Get Free
A3 2Pac - Pac-Lude
A4 2Pac - It Ain't Easy
A5 2Pac - Temptations
A6 2Pac - No Justice No Peace-Lude
A7 2Pac, Natasha Walker - Nothin To Lose
A8 2Pac - Pac-Lude
A9 2Pac - Phuck All Y'all
A10 2Pac, Ray Luv, Mac Mall, Young Lay - Amerikkka Eats It's Young. Producer - Khayree
A11 2Pac, Stretch (4) - Stay True

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Why does it sound in lower pitch