Ghagga in the Scribal Tradition

Ghagga and its three companions in the other series present the clearest case in Gurmukhi of a script that has outlived the sounds it was designed for, and the Guru Granth Sahib is the reason the spelling has held. Punjabi tone had not fully developed, or at least had not displaced the older pronunciation, when the scripture took its written form, and because the text is treated as a living Guru whose wording may not be revised, the letters have stayed where they were put. Every later Punjabi orthography has taken its lead from that text. The result is a spelling system that no longer describes the surface of the language but does describe its history, and Punjabi has never adopted a mark for tone as such: tone is read off the consonant letters instead.

For a reciter this raises the same question Haha raises. Read historically, Ghagga is a voiced aspirate; read as living Punjabi, it is a tone. Sikh institutions teach scriptural recitation as its own discipline rather than as an extension of ordinary reading, and the handling of these letters is one of the things that has to be learned rather than guessed at. A practical consequence follows for anyone setting Punjabi in type or building a font. Tone is invisible, so a typeface has nothing extra to render, but a text-to-speech system reading Punjabi must reconstruct it from the consonant letters and their position, and a system that reads Ghagga as a straightforward gh produces speech that Punjabi listeners hear as foreign.