[samibe]

These are the Color Albums of Twenty Pieces for the Organ.
I'm planning on adding each volume as a separate post in this thread.
The volumes that I know of are:
1. Red
2. Blue
3. Green
4. Yellow
5. Brown
6. Golden
7. Gray
8. Silver
9. Orange
10. Purple
11. Buff
12. Black

PDFs of several of these are available on IMSLP.

[samibe]

CSVFile for "Red Album of Twenty Pieces for the Organ" or "Red Album of 20 Pieces for the Organ"

  Red Album of Twenty Pieces for the Organ.csv (Size: 4.73 KB / Downloads: 6)

[samibe]

CSVFiles for  "Blue Album of Twenty Pieces for the Organ" or "Blue Album of 20 Pieces for the Organ"

  Blue Album of Twenty Pieces for the Organ.csv (Size: 4.74 KB / Downloads: 2)

[samibe]

CSVFiles for "Green Album of Twenty Pieces for the Organ" or "Green Album of 20 Pieces for the Organ"

  Green Album of Twenty Pieces for the Organ.csv (Size: 4.59 KB / Downloads: 2)

[samibe]

CSVFiles for "Black Album of Twenty Pieces for the Organ" or "Black Album of 20 Pieces for the Organ"

  Black Album of Twenty Pieces for the Organ.csv (Size: 5.38 KB / Downloads: 2)

[samibe]

CSVFiles for "Yellow Album of Twenty Pieces for the Organ" or "Yellow Album of 20 Pieces for the Organ"

  Yellow Album of Twenty Pieces for the Organ.csv (Size: 4.84 KB / Downloads: 3)

[samibe]

CSVFiles for "Gray Album of Twenty Pieces for the Organ" or "Gray Album of 20 Pieces for the Organ"

  Gray Album of Twenty Pieces for the Organ.csv (Size: 4.91 KB / Downloads: 0)
The PDF I have is missing the song by S. L. K. Crookes (Berceuse). If you have a scan with that song, you will need to add that data and adjust the page numbers.

[samibe]

CSVFiles for "Golden Album of Twenty Pieces for the Organ" or "Golden Album of 20 Pieces for the Organ"

  Golden Album of Twenty Pieces for the Organ.csv (Size: 4.84 KB / Downloads: 0)

[samibe]

CSVFile for "Brown Album of Twenty Pieces for the Organ" or "Brown Album of 20 Pieces for the Organ" 

  Brown Album of Twenty Pieces for the Organ.csv (Size: 4.6 KB / Downloads: 0)