Definition. 1  A lumpectomy is a type of surgery used to treat breast cancer. It is considered breast-conserving surgery because in a lumpectomy, only the malignant tumor and a surrounding margin of normal breast tissue are removed. 2  Lumpectomy is a surgical treatment for newly diagnosed breast cancer. It is estimated that at least 50% of women with breast cancer are good candidates for this procedure. The location, size, and type of tumor are of primary importance when considering breast cancer surgery options.
A triadic melody is a melody made up of triads. Triads are chordsconsisting of three tones. The triad consists of the root tone, amajor or minor.
Music Theory/Chords - Triads. 1  The triad is a class of chords, specifically three-note chords formed by this formula: 1-3-5 or root, third, fifth. In this example they are constructed of two consecutive thirds. 2  There are four kinds...