import pylrc

lrc_file = open('example.lrc')
lrc_string = ''.join(lrc_file.readlines())
lrc_file.close()

subs = pylrc.parse(lrc_string)
for sub in subs:
    sub.shift(minutes=1, seconds=13, milliseconds=325) # offset by 01:13.325

srt = subs.toSRT() # convert lrc to srt string

lrc_string = subs.toLRC() # convert to lrc string