Em

This video likely performed well due to its clear and concise demonstration of essential guitar chords, catering to beginners. The use of on-screen text and visual cues makes it easy to follow and save for practice.

The video demonstrates how to play the Em, Am, C, and D guitar chords. It shows the chord diagrams and the finger placement on the guitar fretboard for each chord. The text "Practice this daily" and "Slowly first = accurate" is displayed.