Mood: The mood of the video appears to be nostalgic and melodic, evoking a sense of musical nostalgia. The theme seems to be a collection of popular songs from 2016, featuring renowned Indian singers Arijit Singh and Neha Kakkar. The overall emotion conveyed is one of warmth and musical appreciation.

Environment: The setting of the video seems to be a recording studio or a music-related environment, given the presence of headphones and musical notes in the background. The dark background with a subtle musical theme suggests an intimate and acoustic setting, possibly a music concert or a recording session.