This album is the second about the series Ie Naki Ko, but it's the only Music Collection. Some websites do the mistake to name it "Music Collection 2", while the title of the album is well "Ie Naki Ko II Ongakushuu" (and not Ongakushuu II).
According to Anison.info there are only 2 songs in this album:
http://anison.info/data/source/3972.html
So the rest is BGM tracks, what you can see a bit on my photo "contents" where it is written "BGM" for all these tracks.
Then I found the tracklist & credits on this website:
https://music.douban.com/subject/7004335/
A few infos too on this website (look down):
http://www.sun-inet.or.jp/~miura/takeo/m77a30.html
I'm sorry, infos about the tracklist are not complete, but I wanted to add this album now in the database.
Because in fact each track (02~11) has several BGM inside, with the music numbers (M-XX). But I can't add it in the notes without a closer scan of the tracklist on the slipcase.
If someone has the vinyl or some scans of it, it would be good to add these infos in the notes please.
EDIT: I found a website with the music numbers:
https://cdn40.atwikiimg.com/animesongs/pages/5069.html
So it would be for these tracks:
02.（M2/M6/M8/M20）
03.（M13/M14/M26）
04.（M9/M11）
05.（M16/M17/M19）
06.（M45/M49/M46/M52）
07.（M112/M114B/M118/M121）
08.（M101/M105/M103）
09.（M106/M205/M109/M111/M108）
10.（M203/M209/M213/M225）
11.（M119/MG2/M204/M206）
But maybe it would be better to have a confirmation with a photo or a scan.