`  == Dear Michael Bednarek == # Please explain why you can delete the most important lead which explains from its original meanings. The important lead that you deleted unreasonably is below: ``Harmonic is originally an adjective relating to the combination of musical notes to create chords, later, becomes a noun meaning a soft high note played on a stringed instrument by not pressing the string all the way down``.  # Please explain why you can leave the unsourced OR sentence while unfairly accusing ``unsourced OR``. The sentence in queston that you have left is below: ``usually refers to the frequency components of a time-varying signa``.   # Please explain why you can express(lie) ``restore``, though in fact you ``ruin``ed the lead apparently.  # Please explain why you didn't edit positively at all when you are not satisfied with others' edits.  # Please explain why you cannot think your unreasonable deletings are obviously useless and harmful vandalism against other editors and readers.  * If you can explain these five questions at once(within 72 hours at the latest), you have proved yourself to be the cruel personal attacker to be banned forever, unfortunately.    `