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The harmonics produced by Erfurt bell (1497) [8] or any well-tuned bell: [9] strike note on E with hum note, minor third, fifth, octave or nominal, and major third and perfect fifth in the second octave. The tuning of a bell is completely dependent on its shape.
These partials are customarily given names such as hum, prime, minor third (or tierce), fifth (or quint), octave (or nominal), upper octave, etc. The strike note of the bell, which is determined by three partials (the octave, upper fifth, and the upper octave), is generally close to the pitch of the prime in a well-tuned bell."
The overtones on an English handbell are a 12th (an octave and a perfect fifth) above the fundamental, while Dutch handbells – such as Petit & Fritsen – focus on the overtone a minor 10th (an octave and a minor third) or a major 10th (an octave and a major third) above the fundamental.
CPU Handbell Ringers (Central Philippine University Handbell Ringers) (formerly CPU Handbell Choir) is a Handbell choir founded at Central Philippine University.It is considered as the first handbell choir in the Philippines and also the only 5-octave handbell choir in the country.
The intervals of 5-limit just intonation (prime limit, not odd limit) are ratios involving only the powers of 2, 3, and 5.The fundamental intervals are the superparticular ratios 2/1 (the octave), 3/2 (the perfect fifth) and 5/4 (the major third).
The diminished fifth is often called a tritone in modern tonal theory, but functionally and notationally it can only resolve inwards as a diminished fifth and is therefore not reckoned a tritone—that is, an interval composed of three adjacent whole tones—in mid-renaissance (early 16th-century) music theory. [19]
The group is a double handbell choir, performing with 27 to 35 ringers on two sets of Malmark handbells (one seven-octave set and one 6½ octave set) and two sets of Malmark handchimes (six octaves each). The octave two bells are Malmark aluminums. Each part is usually doubled (played by two ringers on separate sets), except octave two.
Two belly bridges and two wrest-plank bridges, one set for each octave, determine the vibrating length of the strings, and the belly bridge, as in other stringed instruments, is the medium through which the vibrations of the strings are communicated to the soundboard. The arrangement of pegs and wrest-pins is much the same as on the piano.