One person singing "happy birthday" with simple chords accompanying the melody produces a(n) texture.

Homophonic texture occurs when there is a melody accompanying with chords like in a guitar. In Baroque period, there was homophonic music as there was one melody with a support from a keyboard player thus one person singing happy birthday with a simple chord with melody has a homophonic texture.

All elements are subordinate to the total effect and do not overshadow it

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