References. 1  5 U.S.C. 5504. 2  5 CFR part 550, subpart F. 3  GAO Study - August 26, 1981 (PDF file) [353.6 KB] 4  How to Compute Rates of Pay. 5  Salary Tables and Related Information. 6  Guidance on Pay Caps in Calendar Years with 27 Pay Days (external link)
A harpsichord is a keyboard instrument, similar to a piano, that  has an array of strings plucked by a device called a plectrum (or  pick), which is actuated by mechanisms â¦ attached to the keys.  Historically, plectrums were made of quill, but today they are  mostly made of plastic.
Treble clef is the upper stave of the grand stave used for harp and keyboard instruments. It is also sometimes used, along with tenor clef, for the highest notes played by bass-clef instruments such as the cello, double bass (which sounds an octave lower), bassoon, and trombone.