Korandje has 21 consonant phonemes reflecting both its Songhay core and centuries of Berber/Arabic contact. Contact-derived sounds include the uvular stop q, pharyngeal fricative ħ, voiced velar fricative ɣ, and voiceless velar fricative x — all absent from other Songhay languages. The palato-alveolar fricative ʃ (sh) is also present through contact influence [1].
Korandje has six vowel phonemes including the schwa /ə/ (a central mid vowel) which entered the language through Berber contact. The schwa is absent from other Songhay languages but common in Berber. The basic Songhay vowel inventory of a, e, i, o, u is preserved, with ə added as a contact-borrowed vowel phoneme [1].
The Korandje numerals are among the strongest evidence for the language's Songhay affiliation. Despite massive vocabulary replacement from Berber and Arabic, the core numerals remain recognisably Songhay in origin — parallel to the numerals of Koyra Chiini and other Songhay varieties [1].
The complete Korandje Latin documentary alphabet. The presence of q, ħ, ɣ, and x alongside the Songhay-origin consonants makes Korandje visually distinctive from other Songhay languages. This extraordinary mixture of Nilo-Saharan grammar with largely Berber/Arabic vocabulary makes Korandje one of the most linguistically fascinating endangered languages in the world [1].
The Tabelbala oasis community is Muslim and historically used Arabic for written communication. Korandje is uniquely well-suited to Arabic script because it has directly borrowed four Arabic consonants into its phonology — ħ /ħ/ → ح, q /q/ → ق, ɣ /ɣ/ → غ, and x /x/ → خ. These four have exact Arabic letter matches, unlike most African languages that must approximate. The Arabic script mapping for Korandje is therefore more accurate than for many languages with longer Ajami traditions [1].
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