Musical Instruments

De Good Autoharp

I’ve taken the summer off from blogging, tending instead to academic commitments and catching up on overdue reading and research. One of the areas I’ve been drawn into is the use of numeric, mnemonic, and letter-based alternatives to staff notation in the teaching of music. This has been a contentious topic in writing on the theory of Western music ever since the emergence of staff notation many centuries ago. The initial primary concern was how best to help unskilled singers gauge the size of intervals in vocal performance. In the late-18th century interest was additionally turned toward the desirability of music being printable using systems that “bring all its characters within the compass of a common fount of printing-types.”

The design of musical instruments expressly intended to bolster the pedagogical process became a focus of innovative activity that can be traced back at least to 1830. This was targeted both to use in schools and supporting members of church congregations in psalmody. Charles Zimmermann developed his autoharp with tutorial intent, incorporating a system for numbering the strings and the corresponding steps of a scale that could be indicated in simplified printed music. He also devised lesser known schemes for the similar notation of music for the button accordion and labeling the piano keyboard.

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Musical Instruments

Passing the bar exam


This post takes another look at the often blurry lines separating what are regarded as categorically distinct types of chord zithers. The focus this time is on variant forms of the autoharp that branched off before it had fully acquired its current identity. The baseline is an unmechanized zither with free strings only, tuned to a continuous scale that can be anything from single-key diatonic to fully chromatic.

It becomes an autoharp by the attachment of a battery of movable bars with damping pads — but there’s more to it. Adding that the pads on a given bar have to be arranged to mute the strings that don’t belong to a specified chord still doesn’t cover everything. The lock bars now commonplace on two- and three-key diatonic autoharps mute strings that don’t belong to a specified scale, rather than chord. Systems that produce chords by pressing two bars simultaneously entail further variation, so it is also necessary to distinguish between one type of bar and another.

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Musical Instruments

Zither accordions

For decades, my day job gave regular need for bridging the gaps between the academically derived terminologies used for the labeling and classification of musical instruments in museum collections, the craft-oriented vocabularies of musical instrument makers, and the freer glossary used by musicians. I was deeply embroiled in what remains lively controversy about classification systems and am finding it increasingly difficult to steer clear of that topic on this blog.

At the moment, though, it seems to be something of a “Patent of the Month Club.” The nomenclature applied to the description of musical instruments in the reported documents varies widely and wildly, and is often severely at odds with that accepted in explicitly music-oriented contexts. Dealing with this is keeping the terminologist in me happily occupied. The present installment also provides a springboard into the discussion of tuning and tuning systems, which is another topic that I’ve been saying less about than I ultimately intend to.

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Musical Instruments

Patent misrepresentation of patents

The history of the autoharp and other chord zithers is replete with innovations that were patented in one country and appeared shortly afterward in a patent issued in another country. When the dates are close enough, it can be difficult to determine who should be credited with the actual invention. Similarities do sometimes appear to be coincidental but plagiarism was common enough. One way of disguising it was to “extend” an earlier patent for a similar device to include the co-opted later innovation. Since the date of such revision was also recorded, this only partially obscured the actual priority.

Another technique was to label an instrument with the number or date of a patent that didn’t actually cover the design detail it was alleged to protect. The initial version of the present post exemplified this with the way Charles Zimmermann used the number and date of a US patent issued to him on 9 May 1882. The patent claims are quite specific in the details of the damping bars and soundbox design of the “autoharp” that it introduced, literally and musically. Both design details were changed substantially in the instruments he subsequently began producing on a large scale. Nonetheless, he labeled them with his initial patent coordinates.

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