Answer :
Final answer:
The sitar is the melodic instrument used in the 'Folk Melody Based on Raga Des'.
Explanation:
The melodic instrument used in the 'Folk Melody Based on Raga Des' is a sitar. The sitar is a plucked string instrument commonly used in Indian music for melodic improvisations. It is distinct in its long neck, gourd ends, and sympathetic strings that resonate.
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