Question: What was the speciality of G. K. Venkatesh, who worked on films including Ananda Bashpa in 1963?

full_context: Document 1: Ghantasala (singer): Ghantasala Venkateswara Rao (4 December 1922 – 11 February 1974) was an Indian film, composer, playback singer known for his works predominantly in Telugu cinema, and a few Tamil, Kannada, Malayalam, Tulu and Hindi language films. In 1970, he received the Padma Shri award, India's fourth highest civilian award for his contribution to Indian cinema. According to "The Hindu" and "The Indian Express", Ghantasala was "Such a divine talent and with his songs he could move the hearts of the people." "Ghantasala's blending of classical improvisations to the art of light music combined with his virtuosity and sensitivity puts him a class apart, above all others in the field of playback singing"." "Gifted with what Indian Film Historian V. A. K. Ranga Rao called "the most majestic voice", Ghantasala helped Telugu film music develop its own distinct character which remains unparalleled". He is referred to as the "Gaana Gandharva" for his mesmerising voice and musical skills.
Document 2: K. S. Gopalakrishnan: K. S. Gopalakrishnan was an Indian screenwriter, director, producer, and lyricist, who worked in Tamil, Malayalam and Hindi films. Since the early 1960s, he directed 70 films. He spent most of his career directing and producing movies with social and devotional themes. Most of his movies are melodramas. His son K. S. G. Venkatesh is an actor who has acted in television serials and in films like "Sathuranga Vettai".
Document 3: S. P. Venkatesh: S. P. Venkatesh is a music director and composer popular for his works in the Malayalam film industry.His father Pazhani was an accomplished Mandolin player.During his early days S.P.Venkatesh used to be adept at playing Guitar,Banjo and Mandolin.He was an assistant music director to Shyam and Raveendran Master during his early days. S. P. Venkatesh was introduced into the Malayalam film industry by Dennis Joseph. The major break for S. P. Venkatesh came in the form of the film "Rajavinte Makan", directed by Thampi Kannanthanam. The film and the songs in it turned out to be big hits. From then on he became an integral part of Thampi's ventures. It was Thampi kannanthanam who exploited the musical talents of S.P.Venaktesh which resulted in a series of musical hit albums during the nineties. He soon became one of the top music directors of the early and mid-nineties. "Indrajaalam", "Kilukkam", "Minnaram", "Sphadikam", "Dhruvam", "Kauravar", "No.20 Madras Mail", "Manthrikam" were among the influential film scores he created.
Document 4: K. Raghavan: K. Raghavan (Malayalam: കെ. രാഘവന്‍ ) (2 December 1913 – 19 October 2013), popularly known as Raghavan Master, was a Malayalam music composer. Along with G. Devarajan, V. Dakshinamoorthy and Baburaj, Raghavan was often credited for the renaissance of Malayalam film music. He was the pioneer in contributing Malayalam film songs with its own tunes and styles. Till then, Malayalam film songs were in the tunes of popular Hindi and Tamil film songs and old classical kritis. Raghavan gave a new direction and identity to Malayalam film music. He composed around 400 songs in Malayalam cinema and was active in the Malayalam film industry for nearly four decades.
Document 5: G. K. Venkatesh: Gurajada Krishnadas Venkatesh (GKV) (21 September 1927 – 13 November 1993) was a prominent composer of film music in Kannada cinema during the 1960s, 1970s and until the late-1980s. He also composed music for Tamil, Malayalam and Telugu movies. He produced numerous master pieces of Kannada film music. He also brought in Western background score into Kannada films and scored music for all Bond movies of Dr.Raj in the 1960s to 1970s.
Document 6: Santhosh Ananddram: Santhosh Ananddram is an Indian film lyric writer, screenwriter, director who works in Kannada cinema. He rose to fame with his debut directional venture 2014 film "Mr. and Mrs. Ramachari". He later went on and directed Kannada Star Puneeth Rajkumar in Raajakumara movie, which was considered "Industry Hit" in Kannada cinema.
Document 7: Deva (composer): Devanesan Chokkalingam, popularly known as Deva, is an Indian film composer and singer. He has composed songs and provided background music for Tamil, Telugu, Malayalam and Kannada films in a career spanning about 20 years. Many know his gaana songs, written mostly using Madras Tamil. He is known as the "Father of Gaana Genre" in the Tamil film industry.
Document 8: Anuraga Aralithu: Anuraga Aralithu is a 1986 Kannada film based on a Kannada Novel "Anuragada Anthapura" written by H. G. Radhadevi. The film starred actor Rajkumar along with Madhavi, Geetha and Pandari Bai. It was directed by: M.S. Rajashekhar. The music director and composer was Upendra Kumar. Song lyrics were by Chi. Udaya Shankar. The film was highly successful at the box office. It was later remade in Tamil as "Mannan" , in Telugu as "Gharana Mogudu" which is a bigger hit than original version and in Hindi as "Laadla".
Document 9: Anand Raj Anand: Anand Raj Anand is an Award winning Indian music director, composer, lyricist and playback singer in the Hindi film industry.
Document 10: M. Venkataraju: M Venkataraju, one of the finest music directors of Kannada film world, who had a short span of life. He composed very good tunes for few movies due to his sudden demise. He was comparable to G.K. Ventakesh and if he was with us for long then there could have been a very good competition to give us more good songs. One technique he used was Ugabhogas (one of ways in Kannada poetry - Daasa Sahitya has used this more) in the beginning of the songs or just the Ugabhogas were his specialty (SwarnaGowri, Kanakadasa has good examples). He was brother of noted music director M.Rangarao (who famous for Saakshatkaara, Bandhana,etc.).
Document 11: Ilaiyaraaja: Ilaiyaraaja (born 2 June 1943 as Gnanathesikan) is an Indian film composer who works in the South Indian cinema predominantly in Tamil since mid 1970s. Widely regarded as the greatest Indian music composer of all time, Ilaiyaraaja is also an instrumentalist, conductor, singer, and songwriter. He has composed more than 6000 songs and provided film scores for more than 1000 films, particularly being acclaimed for his background scores.
Document 12: Anup Bhandari: Anup Bhandari is an Indian film director, composer and lyricist who works primarily in Kannada cinema. Software engineer-turned-short filmmaker and now debutant Kannada film director Anup Bhandari seems to have charted out his career graph well in advance. He was born in Mangaluru to director Sudhakar Bhandary and Rathna Bhandari, raised in Mysuru and has worked in the US, but hopes to settle down in Bengaluru. Anup holds an Engineering degree from Vidya Vikas Institute of Engineering & Technology (VVIET), Mysuru. His directorial début mystery thriller Kannada movie Rangitaranga has been critically acclaimed. Anup also wrote the lyrics and composed music for the movie. He has four more movies in pipeline. His other works include a short movie "Words" for which cinematography was done by Lance Kaplan.
Document 13: Anand (2004 film): Anand (   ) is a 2004 Telugu drama film that was directed, produced and written by Sekhar Kammula. The film has the tagline " Manchi coffee lanti cinema" meaning a movie that is like a cup of good coffee. The lead roles were played by Raja and Kamalinee Mukherjee. The film was well received by critics and owing to its success at the box office, it was remade in Tamil as "Ninaithale". The film's basic story was also chosen as the subject for Sekhar Kammula's thesis screenplay which was a requirement for his Masters in Fine Arts at Howard University. The film was screened at the International Film Festival of India in the mainstream section.
Document 14: Ananda Bashpa: Ananda Bashpa (Kannada: ಆನಂದ ಭಾಷ್ಪ) is a 1963 Indian Kannada film, directed and produced by R. Nagendra Rao. The film stars R. N. Sudarshan, K. S. Ashwath, Harini and Rajani in lead roles. The film had musical score by G. K. Venkatesh.
Document 15: Andala Ramudu (1973 film): Andala Ramudu is a 1973 Telugu, comedy drama film, film produced by N. S. Murthy on Chitra Kalpana banner and directed by Bapu. Starring Akkineni Nageswara Rao, Latha in the lead roles and music composed by K. V. Mahadevan.The film is based on Mullapudi Venkata Ramana's "Janata Express" (novel). The film is first debut to veteran artist Nutan Prasad & Latha. The film won Nandi Award for Best Feature Film in 1973. The film has given enthusiastically drawing atmosphere and spirit to the movie "Godavari" (2006), directed by Sekhar Kammula.
ground_truth: composer of film music