Sounds — possibly musical — heard in the night from other worlds or realms of being. - H. P. Lovecraft

To be bitter is to attribute intent and personality to the formless, infinite, unchanging and unchangeable void. We drift on a chartless, resistless sea. Let us sing when we can, and forget the rest..

May the merciful god, if indeed there be such, guard those hours when no power of the will, or drug that the cunning of man devises, can keep me from the chasm of sleep. Death is merciful, for there is no return therefrom, but with him who has come back out of the nethermost chambers of night, haggard and knowing, peace rests nevermore.

I had evoked - and the book was indeed all I had suspected.