Sound is vibration transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a threshold of hearing to be heard, or the sensation stimulated in organs of hearing by such vibrations....
A sonority hierarchy or sonority scale is a ranking of speech communication sounds by amplitude. For example, if you say the vowel [a], you will produce much louder sound than if you say the Stop consonant [t].... , a ranking of speech sounds (or phones) by amplitude
Music theory is the field of study that deals with how music works. It examines the language and notation of music. It identifies patterns that govern composer techniques.... , a chord
Chord
Chord may mean:* Chord , a aggregate of musical pitches sounded simultaneously.** Guitar chord an aggregate of musical pitches played simultaneously on a guitar... , particularly when speaking of non-traditional harmonies
metals are sonorous
while non metals are not sonorous
