![]() I suppose it's also too much to ask that we also strive towards consistency in the way specifications are presented? For the most part, the commencing ranks of Pedal mixtures are based on a 16' unison, but recently an acquaintance invited me to try the organ at his church, and obligingly wrote down the specification. ![]() The unison of the Pedal being 16', it is a good idea to adopt a system for it, which differs in nature from that applicable to the manual claviers. ![]() Using such a distinction seems very sensible, pcnd. However, like the spelling of 'Cromorne', there are probably as many versions as there are active members of this board. With regard to the Pedal clavier, I would normally refer to 'bottom C', 'middle C' and 'top C' when teaching - 'CCC' usually elicits either "Excuse me?" or a blank, uncomprehending stare. Certainly, my organ builder has never complained. What I prefer to use myself is the following: C1, C13, C25 (middle C), C37, C49 and C61, since I believe that this is less confusing. There are a few variations of how the octaves above are indicated for example: c' (middle C), c'', c''' and c'''' (the last is the hightest note on a sixty-one note clavier). In relation to the claviers for the hands: CC is two octaves below middle C and C (or TC) is one octave below. Continental builders often use a system that goes c c' c'' c''' etc. I'm no expert but generally which note is meant can be deduced by context. Often pedal notes are treated as though they are inherently an octave below the manuals so the lowest note is written CCC (compared to the lowest note of the manuals being CC) but perhaps the lowest note of the Pedal 8' Bass Flute is CC. For a start there's confusion over whether a pitch or a key is intended. There are many different systems and they can be confusing. I've generally seen it used in relation to pedal notes, though presumably it can apply to manuals as well. I guess that it's probably in relation to middle C, but I've never seen written down how this convention works, though I'm sure it is extremely simple. I often see use of a convention by which you can refer to specific notes at particularly octaves e.g.
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