[ Thanks to linuxaria for this link.
]
“With LMMS it’s also possible to add effects to pre-existing
audio so it allows you to record vocals in a program like Audacity,
import it as a sample, add filters and distortion, and then make
the entire file one track. The ability to create your own samples
in the same composition program saves a lot of time that would be
wasted between copying the sound between multiple programs.”