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Mr R Foster MABPT Dip AEWVH


Harrow, London HA2 7AS
England

London Wide Piano Tuning Service Covering Acton, Chiswick, Ealing, Fulham, Hammersmith, Hampstead, Highgate, Harrow, Pinner, Stanmore and More...

Harrow Music Lessons


Harrow, London HA1
England

2004-06 PG Dip, Royal Academy of Music
2000-04 BMus(Hons), Royal Academy of Music

I work at St. Helen's School for Girls, Northwood and also I free-...

Ms Mazzola


Harrow
Harrow, London
England

Private piano lessons:
£ 19.00/half-an-hour
£ 37.00/hour

Harrow Piano Accompanist


Harrow, London HA1
England

Music teacher at St. Helen's School.
Experienced exam and audition accompanist.

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Did You Know Piano Facts

What is the difference between Overdamping and Underdamping?

Overdamping is a system whereby the piano damping mechanism (the bit that shuts the piano up) is situated above the hammer strike line. Underdamping is where the piano dampers are placed below the hammer strike line. Advantages and disadvantages. Overdamping. Imagine an elastic band three-foot long, you twang it and then put your finger near to the end of the elastic band, to stop it vibrating. This is overdamping

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Take the same elastic band and place your finger near the centre to stop it from vibrating this is underdamping, which of course is more efficient. Overdamping is controlled by gravity where as underdamping is controlled by adjustable springs so on the whole underdamping is far more efficient than overdamping. However, there is one disadvantage with underdamping. That is, if the dampers are incorrectly aligned to the nodes and antinodes of the vibrating string this will result in, the dampers when they come in contact with the string, emphasising certain harmonics on the piano, thus giving you a harmonic ring, this is more common on small uprights and small grandís as the margin of tolerance decreases as the piano becomes smaller.