Of course, you can hold the horn and your arms in playing position that way. However, if you can avoid this, the important question is, is there really any sense keep on doing that? Would the playing be better in the long run if your arms, shoulders, neck and back could be more relaxed?
The ERGObrass helps you to keep a good posture and breathe more freely and efficiently. Would it not be better to lean, or even hang, your arms on the horn rather than keep them continually tensed up?
When standing up, the belt takes all the weight. Easily adjusted, ERGObrass support encourages a good performing posture and better breathing.
When sitting down, the weight is transmitted to the chair. The horn floats lightly from the centre of gravity on a spring. You can turn the horn smoothly anywhere while you play.