Ranjana Aa

Sanskrit does not treat length as a shade of a vowel but as the thing that distinguishes one vowel from another, and Aa is the first of the pairs that make that principle visible. Aa is the same articulation as A, the tongue at rest and the lips unrounded, held for roughly twice as long, and swapping one for the other changes the word rather than the accent. The varnamala is built out of such pairs: short and long a, short and long i, short and long u, and then the two vocalic liquids in their short and long forms, before the compound vowels close the series. Because the pairing is systematic, the writing is systematic too.

Where a consonant sign already carries the short a without any mark, the long aa is written as a separate stroke attached to the sign, and that stroke is the first vowel mark a learner meets. The independent letter shown here is the form used only when nothing precedes the vowel, at the head of a word or after another vowel where no consonant intervenes. The distinction between the independent letter and the attached mark holds for every vowel in the script, but it is easiest to see with aa, because the difference between the presence and the absence of a mark is here the difference between a short vowel and a long one, and nothing else about the syllable changes at all.

Vowel length is the kind of distinction that a writing system can afford to lose and Sanskrit cannot. Verse in the classical metres is quantitative, built from patterns of heavy and light syllables rather than from stress, and a syllable is heavy in part because its vowel is long. A scribe who dropped the mark that turns a into aa would not merely misspell a word but break the metre of a line, and in a manuscript tradition whose texts are chanted, that is an audible fault rather than a silent one.

Ranjana was the hand chosen in the Kathmandu Valley for exactly the material where such faults matter most, the Sanskrit of Buddhist scripture and the mantras that accompany it, and the discipline of copying carried the same weight there as it does in any scriptural tradition. The practical result is visible in the letterforms. Ranjana is written from a strong horizontal head stroke with the letters hanging beneath it, and the vowel marks attach to that stroke or run down beside the letter, so the eye can check them as a row rather than hunting through the body of each sign. The design is legible in exactly the way a text meant to be read aloud needs to be, and the mark for aa, sitting upright to the right of its consonant, is the clearest instance of it.