Editing Low-frequency effects (section)

=== Low-pitched musical arts ===
LFEs include both low-pitched musical notes and low-pitched sound effects. The musical [[soundtrack]] for many films includes bass instruments that produce very low notes. Until the 1970s, most of the low-pitched instruments were natural, acoustic instruments, such as the [[double bass]] or the [[pipe organ]]'s [[pedal keyboard]]. After the 1980s, film scores increasingly used synthesized instruments, including [[synthesizer bass|synth bass]] keyboards, which incorporated very low-pitched notes.