Helen,

I'll try again tomorrow, as I apparently was too tired yesterday, resulting in 14 tones from 13 bells. At least that's what I got from the musician's transcription of 6 and 5. Anyway, the point was that some people suggested the scale might not be well-tempered, but the transcription doesn't seem to indicate that. Though indeed some of the songs are in different keys, there are no notations for other perfect tones. However, it's apparently an economical set: It doesn't include half notes that are not necessary for the keys and melodies played.

That brings us to the other question: Though there may have been more pieces, they were apparently not made so often that it paid to have a standard mechanism, including tones that weren't actually used. Well, matters of size and material would play a part too, I guess. Still, if more were made, there could have been documentation for other specimen. Even if this was a one-off, more may be known about the tunes in general use in these clocks.

Bye
Mysha