INTERCOSTAL • FREE-TRANSLATOR.COM • Definition of Intercostal

... power and control. These two forces must prevail, and in order to produce the voice artistically, they must be balanced. This is done, indirectly, through the movements we advocate, through the position and action of the body. The motor power lies in the diaphragm and in the abdominal and intercostal muscles. The controlling force lies in the chest, in a properly adjusted larynx and the approximated breath-bands. These two forces must be balanced during the act of singing. Most singers are much stronger in the driving or motor power than in reaction or the controlling ...

— The Renaissance of the Vocal Art • Edmund Myer