i dont know, somehow i have the feeling there is a mistake in the answer sheet for the TR-107-PLUS.
[mod edit - font size reduced the font size to avoid any spoilers ... click on quote if you want to read the section I have made tiny]
In the last bar of #107-E I always hear: 10 (c) 8 (eb) 9 (e) 8 (c) 11 (bb) instead of 10 8 9 8 10 8 11.
In the second last bar of #107-F I hear: 12 (g) 14 (a) 15 ... and not 14 (a) 12 (g) ...
[mod edit - end of font reduction]
maybe i'm just deaf, but maybe i'm right ...
apart from this, the sites is just excellent.