Hola amigos from ecuador!.
as a musician, and rollercoaster fan for me, there is not worss sound of the coasters, but i mention the best sound in a rollercoaster.
the Vekoma scl lifts hils!.
all scl vekoma models has a particular sound of the motors when yo climeing.
more detailled if a musician is viewing this topic.
most SLC coasters has a sound when you climeing, the lifts hils has a completely musical sound!.
consist in a high pitch note, and a low pitch note.
most of the slc has diferent notes in the motors but in general the high pitch is a d, and a low pitch is a f Sharp, 2 octaves down.
in teh next post i put a example how this to tones sound in a piano for comparison.
Saludos from ecuador!.