In addition to the Jola "akonting", the Manjago "buchundu", the Papel "busunde", the Balanta kisinta, and all the various kinds of wooden-bodied lutes that are exclusive to the griots (for example, the Mande "ngoni", the Wolof "xalam", the Fula "hoddu", and the Soninke "gambare") have a short "thumb string" drone. The "thumb string" seems to be a feature unique to lutes of Senegambian origin which have three or more strings and are played with the fingers, regardless of playing style. Conversely, 1-string lutes (e.g. the gourd-bodied "gambra" of the Haratin of Mauritania) and 2-string lutes (e.g. the gourd-bodied "koliko" of the Frafra of Ghana and the wooden-bodied "garaya" of the Hausa of Nigeria, Niger, and Ghana) are played with flat-pick type "plectrums", so a drone string is useless on these instruments.