Problem: Bhaktisiddhanta Sarasvati (Bhaktisiddhanta Sarasvati; Bengali: bhktisiddhaant srsbtii; Bengali: [bhoktisiddhanto SoroSboti] ( listen); 6 February 1874 - 1 January 1937), born Bimala Prasad Datta (Bimala Prasad Datta, Bengali: [bimola proSad dotto]), also referred to as Bhaktisiddhanta Sarasvati Thakura, was a prominent guru and spiritual reformer of Gaudiya Vaishnavism in the early 20th century in India. Bimala Prasad was born in 1874 in Puri (Orissa) a son of Kedarnath Datta Bhaktivinoda Thakur, a recognised Bengali Gaudiya Vaishnava philosopher and teacher. Bimala Prasad received both Western and traditional Indian education and gradually established himself as a leading intellectual among the bhadralok (Western-educated and often Hindu Bengali residents of colonial Calcutta), earning the title Siddhanta Sarasvati ("the pinnacle of wisdom"). Under the direction of his father and spiritual preceptor, Bimala Prasad took initiation (diksha) into Gaudiya Vaishnavism from the Vaishnava ascetic Gaurakishora Dasa Babaji, receiving the name Shri Varshabhanavi-devi-dayita Dasa (Sri Varsabhanavi-devi-dayita Dasa, "servant of Krishna, the beloved of Radha"), and dedicated himself to arduous ascetic discipline, recitation of the Hare Krishna mantra on beads (japa), and study of classical Vaishnava literature.

The encounter with and initiation from Gaurakishora Dasa Babaji, an illiterate yet highly respected personality, had a transformational effect on Siddhanta Sarasvati. Later, reflecting on his first meeting with the guru, Bhaktisiddhanta Sarasvati recalled:  It was by providential dispensation that I was able fully to understand the language and practical side of devotion after I had met the practicing master [Gaura Kishora Das Babaji]....No education could have prepared me for the good fortune of understanding my master's attitude....Before I met him my impression was that the writings of the devotional school could not be fully realised in a practical life in this world. My study of my master, and then the study of the books, along with the explanations by Thakura Bhaktivinoda [Bhaktisiddhanta's father Kedarnatha Datta], gave me ample facility to advance toward true spiritual life. Before I met my master, I had not written anything about real religion. Up to that time, my idea of religion was confined to books and to a strict ethical life, but that sort of life was found imperfect unless I came in touch with the practical side of things.  After receiving initiation, Siddhanta Sarasvati went on a pilgrimage of India's holy places. He first stayed for a year in Jagannath Puri, and in 1904 travelled to South India, where he explored various branches of Hinduism, in particular the ancient and vibrant Vaishnava Shri and Madhva sampradayas, collecting materials for a new Vaishnava encyclopaedia. He finally settled in Mayapur 130 km north of Calcutta, where Bhaktivinoda had acquired a plot of land at the place at which, according to his research, Chaitanya Mahaprabhu was born in 1486. At that time, Bhaktivinoda added the prefix "bhakti" (meaning "devotion") to Siddhanta Sarasvati, acknowledging his proficiency in Vaishnava studies.  Starting from 1905, Bhaktisiddhanta Sarasvati began to deliver public discourses on the philosophy and practice of Chaitanya Vaishnavism, gathering a following of educated young Bengalis, some of whom became his students. While assisting Bhaktivinoda in his developing project in Mayapur, Bhaktisiddhanta vowed to recite one billion names of Radha (Hara) and Krishna - which took nearly ten years to complete - thus committing himself to the lifelong practice of meditation on the Hare Krishna mantra taught to him first by his father and then by his guru. The aural meditation on Krishna's names done either individually (japa) or collectively (kirtana) became a pivotal theme in Bhaktisiddhanta's teachings and personal practice.

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Answer with quotes: Bhaktisiddhanta vowed to recite one billion names of Radha (Hara) and Krishna - which took nearly ten years to complete


Problem: Tangerine Dream is a German electronic music band founded in 1967 by Edgar Froese. The group has seen many personnel changes over the years, with Froese being the only continuous member until his death in January 2015. The best known line-up of the group was its mid-70s trio of Froese, Christopher Franke, and Peter Baumann. In the late 1970s, Johannes Schmoelling replaced Baumann.

Edgar Froese arrived in West Berlin in the mid-1960s to study art. His first band, the psychedelic rock-styled The Ones, disbanded after releasing only one single. After The Ones, Froese experimented with musical ideas, playing smaller gigs with a variety of musicians. Most of these performances were in the famous Zodiak Free Arts Lab, although one grouping also had the distinction of being invited to play for the surrealist painter Salvador Dali. The music was partnered with literature, painting, early forms of multimedia, and more. It seemed as though only the most outlandish ideas attracted any attention, leading Froese to comment, "In the absurd often lies what is artistically possible." As members of the group came and went, the direction of the music continued to be inspired by the Surrealists, and the group came to be called by the surreal-sounding name of Tangerine Dream, inspired by the line "tangerine trees and marmalade skies" from The Beatles' track "Lucy in the Sky with Diamonds."  Froese was fascinated by technology and skilled in using it to create music. He built custom-made instruments and, wherever he went, collected sounds with tape recorders for use in constructing musical works later. His early work with tape loops and other repeating sounds was the obvious precursor to the emerging technology of the sequencer, which Tangerine Dream quickly adopted upon its arrival.  The first Tangerine Dream album, Electronic Meditation, was a tape-collage Krautrock piece, using the technology of the time rather than the synthesized music they later became famous for. The line-up for the album was Froese, Klaus Schulze, and Conrad Schnitzler. Electronic Meditation was published by Ohr in 1970, and began the period known as the Pink Years (the Ohr logo was a pink ear). But starting with their second album, Alpha Centauri, the group has been a trio or occasionally duo of electronic instruments, commonly augmented by guitar from Froese (or, much later, other musicians as well), and occasionally also other instruments. Of these, drums from Christopher Franke and organ from Steve Schroyder (on Alpha Centauri) or Peter Baumann (on subsequent releases) feature prominently in the band's music during the early 70s. They also started their heavy usage of the Mellotron during this period.

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The first Tangerine Dream album, Electronic Meditation, was a tape-collage Krautrock piece,