The Mellotron Group

Absolutely nothing compares to a Cdim7 on an M400 with the strings rushing past like a pacific hurricane ushering dire circumstances to the unprepared listener.

I prefer a Cm with a major 7 with the strings.  It also scares away mice and neighbours, if fed through a nice amp.

I would prefer to create interminable worry within the mice by slapping an Eb root note on that CmMaj7. and that is my favorite chord. The deadly Maj7#5. Probably with the strings.

Of course the 9th is obbligatory.