Final answer:
The passage suggests that the Moors' influence in Spain created a conducive atmosphere for music, which is an example of logical evidence. It links the cultural exchange from the Arab invasion to the evolution of musical instruments and practices.
Step-by-step explanation:
The passage's section "...created an artistic climate that encouraged music to flourish. And so the instruments on which the music was played flourished as well" is an example of logical evidence. This type of evidence provides a rational argument for the contribution of Moorish influence to the flourishing of music and musical instruments in Spain. The text argues that the introduction of the al-ud, brought by the Moors, and the subsequent cultural exchange and intermingling, ultimately created an environment that was conducive to musical innovation and evolution.
This cultural interaction and blossoming of music have roots in the historical context of the Arab invasion and the establishment of Al-Andalus, which includes the impact on agriculture, trade expansion, and artistic patronage by the taifa kings and various dynasties like the Almoravids and Almohads.