Question: The Gandharvas and The Railway Children, have which mutual attributes?

Context paragraphs:
The Railway Children (1970 film): The Railway Children is a 1970 British drama film based on the novel of the same name by E. Nesbit.  The film was directed by Lionel Jeffries, and stars Dinah Sheridan, Jenny Agutter (who had earlier featured in the successful BBC's 1968 dramatisation of the novel), Sally Thomsett and Bernard Cribbins in leading roles.  The film was released to cinemas in the United Kingdom on 21 December 1970.

Sandra Michaels: English actress Sandra Michaels was born in 1944.  Her first television role was in March 1957, playing Phyllis in the second BBC adaptation of "The Railway Children".  Later that year she appeared as Pamela Gwendolyn Stuart in "The Adventures of Clint and Mac", a British-made serial commissioned by Walt Disney Studios for The Mickey Mouse Club.  Also in 1957 she played Caroline, a modern teenager who got up to mischief in the ITV sitcom "The Thompsons".

William Mervyn: William Mervyn (3 January 1912 – 6 August 1976) was an English actor best known for his portrayal of the bishop in the clerical comedy "All Gas and Gaiters", the old gentleman in "The Railway Children" and Inspector Charles Rose in "The Odd Man" and its sequels.

Railway Children (film): Railway Children is a 2016 Indian Kannada docudrama written and directed by Prithvi Konanur.  It is inspired from "Rescuing Railway Children" written by Lalita Iyer and Malcolm Harper that describes the lives of children that run away from their homes, live in railway stations and trains, and grow up as criminals, despite their intentions being harmless and seeking only to earn a living.

The Railway Children: The Railway Children is a children's book by Edith Nesbit, originally serialised in "The London Magazine" during 1905 and first published in book form in 1906.  It has been adapted for the screen several times, of which the 1970 film version is the best known.  The "Oxford Dictionary of National Biography" credits Oswald Barron, who had a deep affection for Nesbit, with having provided the plot.  The setting is thought to be inspired by Edith's walks to Chelsfield railway station close to where she lived, and her observance of the construction of the railway cutting and tunnel between Chelsfield and Knockholt.

Dinah Sheridan: Dinah Sheridan (17 September 1920 – 25 November 2012) was an English actress with a career spanning seven decades.  She was best known for the films "Genevieve" (1953) and "The Railway Children" (1970); the long-running BBC comedy series "Don't Wait Up" (1983–90); and for her distinguished theatre career in London's West End.

The Gandharvas: The Gandharvas was a Canadian alternative rock band formed in 1989 in London, Ontario.

The Railway Children (band): The Railway Children are a British alternative rock band, formed in Wigan in 1984, by Gary Newby (songwriter/vocals/guitar/keyboards), Brian Bateman (rhythm/guitar), Guy Keegan (drums), and Stephen Hull (bass).

The Railway Children (disambiguation): The Railway Children is a children's book written by Edith Nesbit and published in 1906.

Music in Varanasi: Music in Varanasi is a tradition linked to the ancient times of the Pauranic legends.  Lord Shiva, who is reported to have established this city, was credited with developing music and dance forms.  Legend also attributes that Renu, son of sage Vishvamitra and Mahagobind, was the precursors of music tradition in Kashi (Varanasi) when nymphs (Apsaras), Gandharvas and Kinnaras were the traditional practitioners of this art form, and saint Chaitanya and Vallabhacharya were the pioneers in spreading this music tradition in Varanasi.  Notable musicians of Varanasi include the iconic sitar player Ravi Shankar, the Shehnai maestro Bismillah Khan, and the vocal music singer Girija Devi.  Varanasi has joined the global bandwagon of UNESCO "Cities of Music" under the Creative Cities Network.  Varanasi chosen in music category of creative cities network clearly signifies the rich musical heritage of this ancient city.

Supporting paragraphs: The Gandharvas The Railway Children (band)
Answer: alternative rock band