Most dancers don't have musical training, nor do most musicians know how to dance socially. When the two work together, they learn something about each other. Musical arrangers have to know what makes a tune danceable; dancers need to hear the beat of the music. Dancers learn to move naturally when they know the music. The problem is that most tango classes focus on steps rather than the music. Teachers are set in their ways on this and are happy to teach choreography rather than how to improvise movement with a partner by listening to what the music indicates. A music education will help dancers listen to the music. The instruments stand out to them while dancing. Tango is very complex music that is different from all other. It takes lots of listening to understand it. Tango teachers have invented so many terms to try to explain what they don't know. How many even talk about the instruments of tango orchestras and what to listen for? One error is referring to the music as tango songs. A song is any composition designed to be sung, either accompanied or unaccompanied. Most tangos are instrumental with piano, contrabass, bandoneon and violin and without singer. These tangos aren't songs. Musiciality is what you feel in the music and then express in movement. Either you have it or you don't.