How is the history of European and Arabic cultural contact revealed through musicalcharacteristics in places such as Spain and Bulgaria?

Spain's music is known for its flamenco and classical guitar. The flamenco had one singer who sung in the style of melisma. The style of melisma is also in the Arab singers, which confirm the connections between the Spanish and Arab culture. Moor influence the Guitarra Morisca in Spain. Bulgarian music had somewhat, harmony because it was lively and colorful, which might have been influenced by Arabians.