Quarter farthing Quarter farthing The British quarter farthing (d) coin was a unit of currency equaling one sixteenth of a penny ( of a pound sterling). It was produced for circulation in Ceylon in various years between 1839 and 1853, with proof coins being produced in 1868. It is the smallest denomination of pound sterling coin ever minted. The coin is considered to be part of British coinage because it has no indication of what country it was minted for, being made in the same style as the contemporary half-farthing which was legal tender in Britain between 1842 and 1869. Before Decimal
Quarter tone instruments that "cannot" play quarter tones (except by using special techniques—see below) include: Conventional musical instruments that "can" play quarter tones include Other instruments can be used to play quarter tones when using audio signal processing effects such as pitch shifting. Quarter-tone pianos have been built, which consist essentially of two pianos with two keyboards stacked one above the other in a single case, one tuned a quarter tone higher than the other. Many Persian dastgah and Arabic "maqamat" contain intervals of three-quarter tone size; a short list of these follows. \relative c' { \time 8/4 \omit Staff.TimeSignature d4 eeh