Make an 8-String Ukulele From Your Normal Ukulele : 8 Steps (with Pictures) - Instructables
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Bought this 8 string tenor uku. Tuning it for the first time is painfully long but playing on it is so pleasent. Did you ever played an 8string uku ? : r/ukulele
Tune Up! A Beginners Guide to Tenor Ukulele Tuning