Mood: The mood of this image is nostalgic and tribute-worthy, as it pays homage to Jagjit Singh. The overall theme is one of respect and admiration for the legendary artist.

Environment: The environment/setting of this image appears to be a promotional poster or thumbnail for a music video or tribute performance, with a green background and spotlights shining down. The overall aesthetic is sleek and modern, with a nod to the classic style of the artist being honored.