The surviving cantatas are simple harmonically and melodically, yet expressive. Here the composer develops the subject by writing variations either melodically or harmonically. It is usually printed smaller to indicate that it is melodically and harmonically nonessential. Let There Be More Light", as "boring melodically, harmonically, and lyrically. She was known as a harmonically and rhythmically complex and inventive improviser. Tonal sounds are further categorized into groups of harmonically structured sounds or regular tonal sounds. The traditional harmonically tuned bell has a minor third as a main harmonic. It is harmonically and structurally one of the simplest songs of the band's catalogue. It results in improved intonation and stronger harmonically related partials across the player's range. Intermodulation occurs whenever the input frequencies are not already harmonically related. The opera shows him branching out into a more harmonically adventurous Continental operetta style. "Loudmouth" has six major chords and is harmonically complex. Gone are the layers of harmonically treated electric guitar. This practice shaped western music into the harmonically dominated music that we know today. Antennas used in such a fashion are known to be "harmonically operated".