i am compiling some stuff, can anyone pls help me with the grades for these original pieces?(not the simplified version of these pieces that can be found on the web)

1) Chopin’s op. 10 no. 1
2) Chopin’s op.10 no.3 in E maj
3) chopin's op. 10 no. 5
4)Schubert’s ave maria
5)Gounod Charles ave maria
6)Bach’s prelude and fugue BMV 846 in C maj
7)Bach’s prelude and fugue BMV 847 in C minor
8)Mozart’s KV 545 1st movement
9) KV 545 2nd movement
10)KV 545 3rd movement
11)Mozart’s 12 variations on “Ah vous-dirai-maman”
12)Mozart’s KV 331 third movement Rondo Alla Turca
13)J. Strauss Jr. On the beautiful blue danube
14)Chopin’s op. 64 no. 1
15)Michael Nyman’s The heart asks pleasure first
16)Chopin's op. 64 no. 2
17)David Lanz’ Variations on a theme from Pachelbel’s Canon in D major
18)Alan silversti’s forrest gump suite(full)
19)Sakamoto Ryuichi’s Theme from Merry Christmas Mr Sakamoto
20)Kevin kern’s Sundial dreams
21)Kevin kern’s through the arbor
22) chopin's nocturne op. 9 no. 2

thanks!