Study the definition of raga carefully in Worlds of Music and use it to define raga

What will be an ideal response?

• From the Sanskrit word for "coloring, dyeing, tingeing" or "that which colors the mind and the heart . . . an expressive entity with a ‘musical personality' all its own . . ."
• "[I]n part technical—a collection of notes, a scale, intonation, ornaments, resting or pillar tones, and so on."
• "A portfolio of characteristic musical gestures and phrases—bits and pieces of a melody—that give it a distinct and recognizable identity."
• "Each raga has its rules about how a musician may move from one note to another and particular ways of ornamenting certain notes . . . But apart from its scale a raga cannot be written down; it is part of the oral tradition."
• Thus raga refers to an entire complex system for creating classical Indian melodies.
• Particular ragas have specific extra-musical associations, such as being related to various human emotions, different colors or animals or deities, etc.