Nikolay Gennadiyevich Basov (Russian: Никола́й Генна́диевич Ба́сов; 14 December 1922 – 1 July 2001) was a Soviet physicist and educator. For his fundamental work in the field of quantum electronics that led to the development of laser and maser, Basov shared the 1964 Nobel Prize in Physics with Alexander Prokhorov and Charles Hard Townes.

Basov was born in the town Usman, now in Lipetsk Oblast in 1922. He finished school in 1941 in Voronezh, and was later called for the military service at Kuibyshev Military Medical Academy. In 1943 he left academy and served in the Red Army participating in the Second World War with the 1st Ukrainian Front.

Basov graduated from Moscow Engineering Physics Institute (MEPhI) in 1950. He then held a professorship at MEPhI and also worked in the Lebedev Physical Institute (LPI), where defended a dissertation for the Candidate of Sciences degree (equivalent to PhD) in 1953 and a dissertation for the Doctor of Sciences degree in 1956. Basov was the Director of the LPI in 1973–1988. He was elected as a corresponding member of the USSR Academy of Sciences (Russian Academy of Sciences since 1991) in 1962 and an Full Member of the Academy in 1966. In 1967 he was elected a Member of the Presidium of the Academy (1967—1990), and since 1990 he was the councillor of the Presidium of the USSR Academy of Sciences. He was an honorary member of the International Academy of Science. He was the head of the laboratory of quantum radiophysics at the LPI until his death in 2001.

Charles Hard Townes (born July 28, 1915) is an American Nobel Prize-winning physicist and educator. Townes is known for his work on the theory and application of the maser, on which he got the fundamental patent, and other work in quantum electronics connected with both maser and laser devices. He shared the Nobel Prize in Physics in 1964 with Nikolay Basov and Alexander Prokhorov. The Japanese FM Towns computer and game console is named in his honour.

Townes was born in Greenville, South Carolina on July 28, 1915, the son of Henry Keith Townes, an attorney, and Ellen (Hard) Townes. He attended the Greenville public schools and then Furman University in Greenville, where he completed the requirements for the Bachelor of Science degree in Physics and the Bachelor of Arts degree in Modern Languages, graduating summa cum laude in 1935, at the age of 19. Physics had fascinated him since his first course in the subject during his sophomore year in college because of its "beautifully logical structure". He was also interested in natural history while at Furman, serving as curator of the museum, and working during the summers as collector for Furman's biology camp. In addition, he was busy with other activities, including the swimming team, the college newspaper and the football band.

Josep Ferran Sorts i Muntades (baptized 14 February 1778 – died 10 July 1839) was a Spanish classical guitarist and composer. While he is best known for his guitar compositions, he also composed music for a wide range of genres, including opera, orchestra, string quartet, piano, voice, and ballet. His ballet score Cendrillon (Cinderella) received over one hundred performances. Sor’s works for guitar range from pieces for beginning players to advanced players such as Variations on a Theme of Mozart.

Sor gave concerts throughout Europe, including in England, Paris, Berlin, and Warsaw. Before the early 19th century, the guitar was little-known in England. Sor seems to have created a market for himself there and then met the demand. Sor’s contemporaries considered him to be the best guitarist in the world, and his works for guitar have been widely played and reprinted since his death.

As Sor's works were published in various countries, his name was translated, leading to variations in the spelling. Variations have included Joseph Fernando Macari Sors, Fernando Sor, Ferran Sor, Ferdinand Sor, and Ferdinando Sor.

Francisco de Asís Tárrega y Eixea (21 November 1852 – 15 December 1909) was an influential Spanish composer and guitarist of the Romantic period.

Tárrega was born on 21 November 1852, in Villarreal, Province of Castellón, Spain. It is said that Francisco's father played flamenco and several other music styles on his guitar; when his father was away working as a watchman at the Convent of San Pascual the child would take his father's guitar and attempt to make the beautiful sounds he had heard. Francisco's nickname as a child was "Quiquet".

An infection permanently impaired his eyesight and when the family moved to Castelló the child was enrolled in music classes. Both his first music teachers, Eugeni Ruiz and Manuel González, were blind.

In 1862, concert guitarist Julián Arcas, on tour in Castellón, heard the young Tárrega play and advised Tárrega's father to allow Francisco to come to Barcelona to study with him. Tárrega's father agreed, but insisted that his son take piano lessons as well. The guitar was viewed as an instrument to accompany singers, while the piano was all the rage throughout Europe. However, Tárrega had to stop his lessons shortly after, when Arcas left for a concert tour abroad. Although Tárrega was only ten years old, he ran away and tried to start a musical career on his own by playing in coffee houses and restaurants in Barcelona. He was soon found and brought back to his father, who had to make great sacrifices to advance his son's musical education.