Cervical Lordosis: Causes, Symptoms, Treatment, Exercise. Cervical lordosis is a curvature of the cervical spine or the vertebrae in the neck region. There is a normal slight curve present in the cervical vertebrae that enables comfortable movement of the neck in a healthy cervical spine. However, when there is a deviation from the normal curve, it can lead to problems.
cantus firmus(noun) a melody used as the basis for a polyphonic composition. Cantus firmus. In music, a cantus firmus is a pre-existing melody forming the basis of a polyphonic composition. The plural of this Latin term is cantus firmi, although the corrupt form canti firmi can also be found. The Italian is often used instead: canto fermo.
During the Renaissance, masses and motets commonly featured a cantus firmus in the tenor, which was by then no longer the lowest voice. At times, though, the cantus firmus appeared ornamented or paraphrased in the top voice. The plainchant had symbolic as well as purely musical connotations.