The term 'Tune for a Sitar' can be summarized as a Raga, which is a type of melodic framework used in Indian classical music. A Raga is composed of a series of notes that are arranged in a specific order and used to create a melody. The notes are often improvised upon, allowing for a wide range of musical expression. Ragas are traditionally associated with particular times of day or seasons, and they are often used to evoke certain moods or emotions.