->>> h = r.run_lines(h, ['''set_note "Hi there.\\nI'm a note"'''])
-Success
-<BLANKLINE>
->>> h = r.run_lines(h, ['note_filter_playlist --output_playlist filtered'])
->>> h = r.run_lines(h, ['get_playlist'])
->>> h = r.run_lines(h, ['jump_to_playlist -- -1'])
->>> h = r.run_lines(h, ['get_playlist'])
->>> h = r.run_lines(h, ['get_curve'])
->>> h = r.run_lines(h, ['curve_index'])
->>> h = r.run_lines(h, ['jump_to_curve -- -1'])
->>> h = r.run_lines(h, ['get_curve'])
->>> h = r.run_lines(h, ['curve_index'])
->>> h = r.run_lines(h, ['get_note'])
->>> h = r.run_lines(h, ['set_note ""'])
->>> h = r.run_lines(h, ['get_note'])