need help again with 3 tunes from 90 & 91

[dudel]

hi there

need HELP with the following 3 tunes, i recorded on tape 1990 and 1991 from a swiss radio-show called "trends":

01 - hip hop jazz - recorded 31.08.1990
02 - Chosen Few - Positivity (Original Club Mix) = identifyed by Bunkerheadz thx!
03 - F.P.I. Project - Let's Go (Summer Mix) = identifyed by pluto thx!

i need to know artist, title and if possible mix-name.
any ideas?

my motherlanguage isn't english: it also helps if someone can identify the main chorus vocals so i can have a look at discogs by my own - thx!

[BUNKERHEADZ]

2 = Chosen Few - Positivity (Original Club Mix)

Chosen Few (2) - Positivity (Vinyl) at Discogs (http://www.discogs.com/Chosen-Few-Positivity/release/37143)

[pluto]

3 = FPI Project - Let's Go at Discogs (http://www.discogs.com/FPI-Project-Lets-Go/master/33898)