Is the main music instrument of the wolof tribe, and could be considered the national instrument of gambia. it is 21-stringed and built from a large calabash cut in half and covered with cow skin to make a resonator. it sounds like a mixture of harp and flamenco guitar. real koras can be very expensive but small souvenir versions are also available.
The country's currency is the dalasi GMD, which is divided into 100 bututs. Banknotes come in 5, 10, 25, 50, & 100 dalasi values and you may find 25 & 50 butut and 1 dalasi coins in circulation. The exchange rates as of May 2012 are: USD1=GMD30, €1=GMD39, GBP1=GMD49, and 1 dalasi=17 CFA francs. Maestro is not accepted at all. Many tourists have problems because of that. It is better you take CFA francs, euro or US dollars with you. If you have a Visa credit card and don't use a PIN or you forgot it, then the only bank that can help you out is the bigger GT Bank in Banjul, which only requires your card, your passport, and your signature.