Bet this forum drops drastically with just talking rootless chords. They only work in a trio setting or a full rhythm section. In other words a band.
If you play an E G B D the arranger will never know that you want that to be a CMaj79 without the C (which is the Root) note in there.
Any arranger will say "hey he wants me to play an Em7", with out the root ( that the C note with the E G B D notes. I don't give a crap what Scott's teacher told him.
Now try and tell me that this is off topic and you're a nit wit? Ha! Ha!
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I'm not prejudiced, I hate everybody!! Ha ha! My Sister-In-Law had this tee shirt. She was a riot!!!