I häftet finns biografier över kompositör och organist.
Vidare kommenteras alla verk. Orgelns disposition finns också med.
Inspelningen har fått mycket fin kritik. Ett par exempel:

'This set by Willem Tanke is most certainly Messiaenic heaven to me, 
and has placed the music far closer to my heart than any of the previous sets. 
This recent release is as close to perfect as I think I will find'.
(Simon Fitzgerald, The Organ)

'This stunning recording is sure to cause great excitement. Incredible as it may seem 
there were only 3 edits in the entire performance! This is playing of an exceptional standard.'
(Cathedral Classical)