Vikram Seth {'1': ", '2': ", '3': 'CBE', '4': "} ( ; born June 20, 1952) is an Indian novelist and poet.
 He has written several novels and poetry books.
 He has received several awards including Padma Shri, Sahitya Akademi Award, Pravasi Bharatiya Samman, WH Smith Literary Award and Crossword Book Award.
 Seth's collections of poetry such as "Mappings" and "Beastly Tales" are notable contributions to the Indian English language poetry canon.
Printers Inc.
 Bookstore (1978–2001) was an independent bookstore in Palo Alto and Mountain View, California, that closed in 2001.
 "Printers Inc" is referenced in sonnets 8.13-8.16 of Vikram Seth's 1986 novel, "The Golden Gate."
An Equal Music (1999) is a novel by Vikram Seth.
The Frog and the Nightingale is a poem composed by Indian poet Vikram Seth in 1994.
This poem is an allegory(a poem in which a moral is conveyed) The poem tells a story about a frog and a nightingale.
 The poem was originally published by Evergreen Publications, but it was later used by the Ministry of Education, India as a poem for school students.
A Suitable Girl is an upcoming novel by Vikram Seth, which is a sequel to his 1993 book "A Suitable Boy".
 Seth has stated that the book will be set in the present, rather than in 1952 where "A Suitable Boy" finished, and will therefore be what Seth calls a "jump sequel".
The Humble Administrator's Garden is a collection of poetry written by Vikram Seth.
 It is his first collection, published in 1985.
Vikram Seth's second non-fiction work, Two Lives, is the story of a century and of a love affair across an ethnic divide.
 As the name suggests, it is a story of two extraordinary lives, that of his great uncle, Shanti Behari Seth, and of his German Jewish great aunt, Hennerle Gerda Caro.
The Golden Gate (1986) is the first novel by poet and novelist Vikram Seth.
 The work is a novel in verse composed of 590 Onegin stanzas (sonnets written in iambic tetrameter, with the rhyme scheme following the "ababccddeffegg" pattern of "Eugene Onegin").
 It was inspired by Charles Johnston's translation of Pushkin's "Eugene Onegin".
Mappings is a first book of poems by Vikram Seth originally published by the Writers Workshop, Calcutta (now Kolkata), as a hand-set, hand-printed and hand-bound volume ("in Hardback or Flexiback") in 1980 or 1981 (the Flexiback edition copyright date is 1981).
 With the growth of Seth's reputation, the volume has been reprinted by mainstream publishers (ISBN  ).
A Suitable Boy is a novel by Vikram Seth, published in 1993.
 At 1,349 pages (1,488 pages softcover) and 591,552 words, the book is one of the longest novels ever published in a single volume in the English language.
 A sequel, to be called "A Suitable Girl", is due for publication in 2017.

Question: An Equal Music, published in which year, is a novel by Vikram Seth?
Answer: 1999