Rosalie Rebollo Pratt (1933-2005) was a professional harpist throughout the United States and Europe until she developed a disease called scleroderma, at which time she because an educator and researcher in the field of music medicine.

Rosalie Rebollo Pratt grew up in New Jersey and first was introduced to the harp while participating in a choir. The director offered to give her harp lessons and because of this, she had many opportunities to perform and accompany. She later studied under Marcel Grandjany and then entered Manhattanville College at age sixteen.

While attending the college, Rosalie received an invitation from Francis Cardinal Spellman to study the harp in Italy. She was one of eleven students from the United States to receive the honor. She moved to Florence in 1954 and studied at the Pius XII Institute of Fine Arts. After three years, Rosalie earned her master’s. She performed multiple times with the Italian Radio and established herself as one of the leading European harpists.

Upon her return to the United States, she became the principal harpist for the New Jersey Symphony Orchestra. At the height of her career as a performer, editor, and teacher, Rosalie was diagnosed with scleroderma, an autoimmune disease that hardens the skin and decreases flexibility. She was only thirty-six at the time of diagnosis, and in 1979, performing became too painful and she retired. Devastated, Rosalie was determined to move on. She started teaching music in elementary schools and then earned her doctorate in music education at Columbia University. She started teaching music education at a college level and established her second career in music medicine research and education.

Her research and work took her to Brigham Young University. She studied the effects of biofeedback in women during childbirth, engaged in projects with young boys with Attention Deficit Disorder, and worked with premature infants. She was one of the primary editors of "The International Journal of Arts Medicine" and was a guest at many conferences around the world. Eventually, the scleroderma began to affect her kidneys, making it necessary for dialysis. Rosalie continued to travel, but in 2005, her battle with scleroderma took her life.

Samuel O. Pratt (1925-1985) was a composer, pianist, and flutist who contributed greatly to the development of the harp and its literature.

Samuel Orson Pratt was born in El Paso, Texas, on March 20, 1925, as the youngest of thirteen children. After he was through grade school, his family moved to Provo, Utah. In high school he started to study the flute and piano. He then went on to graduate from Brigham Young University (BYU) with a master's degree in psychology. While attending BYU in 1947, Sam met and married Louise Pratt, a harpist. Together they performed in the Utah Symphony and then moved to New York City. While there, Sam met Mark Hunzinger, the manager of Lyon and Healy. Sam was offered the job of managing Lyon and Healy in Los Angeles in 1955. He accepted and held the position for three years. The couple then moved to Chicago to manage the Lyon and Healy factory. Louise had the idea to create a small, more affordable harp. The troubadour harp was then designed and put into full production. After moving back to New York, Sam and Louise divorced. Sam met Rosalie Rebollo and the two were married shortly thereafter. They lived in New Jersey and in 1973, Sam decided to work independently of Lyon and Healy. He started the Samuel O. Pratt Company in Utah, which did regulations and repairs for pedal harps. He continued to design new harps, including the popular Lyon and Healy Style 30 and a small lever harp called the Dauphine. Samuel Pratt died on June 22, 1985, in Utah.