Question: "Now I'm Here" is a song by the British rock band Queen, the sixth song on their third album, "Sheer Heart Attack", it was written by lead guitarist Brian May, released on which date?

Context articles: Stone Cold Crazy
Killer Queen
Sheer Heart Attack (song)
Spread Your Wings
Now I'm Here
Death on Two Legs (Dedicated to...)
Lily of the Valley (song)
Sheer Heart Attack
Sheer Heart Attack Tour
Deep Cuts, Volume 1 (1973–1976)

"Stone Cold Crazy" is a song by British rock band Queen from their 1974 album "Sheer Heart Attack".
 The song is the eighth track on the album.
 Although the song was not released as a single at the time, it was played live at almost every Queen concert from 1974 to 1978.
 "Stone Cold Crazy" also features on the band's 1992 compilation album, "Classic Queen".
"Killer Queen" is a song by the British rock band Queen.
 It was their first big international hit, reaching number two in the UK and becoming their first US hit.
 Written by lead singer and pianist Freddie Mercury, the track was recorded for their third album "Sheer Heart Attack".
"Sheer Heart Attack" is a song by the British rock band Queen, released on their sixth studio album "News of the World" in 1977.
 It is one of two songs on the album entirely written by Roger Taylor.
"Spread Your Wings" is a ballad by the rock band Queen, from their 1977 album "News of the World".
 Written by bassist John Deacon, it was released as the A side of the single Spread Your Wings/Sheer Heart Attack in 1978.
 It features Freddie Mercury on the piano and vocals, Brian May on the electric guitar, Roger Taylor on the drums, and John Deacon on the bass guitar.
 A live version of the song appears in the band's 1979 album "Live Killers".
 The song peaked at number 34 in the UK.
 A live BBC radio session recording features a unique speeded-up final section of the song.
"Now I'm Here" is a song by the British rock band Queen.
 The sixth song on their third album, "Sheer Heart Attack", it was written by lead guitarist Brian May.
 The song is noted for its hard riff and vocal harmonies.
 In the UK, the song reached #11 on the charts when released as a single in 1975.
 The song was a live favourite, performed at virtually every concert from late 1974 to 1986.
"Death on Two Legs (Dedicated to...)" is a song by the British rock band Queen, and is the opening track on their fourth album "A Night at the Opera".
 The song was written by Freddie Mercury and allegedly describes his hatred of Queen's original manager, the late Norman Sheffield, who is reputed to have mistreated the band and abused his managerial role from 1972 to 1975.
 Roger Taylor also noted that despite the success of "Killer Queen" and "Sheer Heart Attack", the album preceding "A Night at the Opera", the band was broke before the album was made.
"Lily of the Valley" is a song by British rock band Queen.
 Lead singer Freddie Mercury plays the piano and provides all the vocals on the track.
 It was originally featured on Queen's third album, "Sheer Heart Attack", released in 1974, and is one of the album's few ballads.
Sheer Heart Attack is the third studio album by the British rock band Queen, released on 8 November 1974 by EMI Records in the United Kingdom and by Elektra Records in the United States.
 Digressing from the progressive themes featured on their first two albums, this album featured more conventional rock tracks and marked a step towards the "classic" Queen sound.
 It was produced by the band and Roy Thomas Baker and launched Queen to mainstream popularity in the UK and throughout the world.
The Sheer Heart Attack Tour was the first world tour by the British rock band Queen, and supported their 1974 album "Sheer Heart Attack".
Deep Cuts, Volume 1 (1973–1976) is a compilation of Queen tracks between 1973 and 1976.
 Unlike other compilations released by Queen, "Deep Cuts" contains songs which are largely not as well known as Queen's hits.
 The album was released on 14 March 2011 as part of Queen's 40th anniversary.
 "Deep Cuts Volume 1" was released at the same time Queen's first five albums ("Queen", "Queen II", "Sheer Heart Attack", "A Night at the Opera", and "A Day at the Races") were re-released.
 The songs picked were all personal favourite songs, that were not hits, selected by Brian May, Roger Taylor, and Taylor Hawkins (the drummer for the Foo Fighters).
 It is the only release to feature the complete ending of "The March of The Black Queen" (on "Queen II" it segues to "Funny How Love Is") and of "Ogre Battle" (on "Queen II" it segues to "The Fairy Feller's Master-Stroke").
 The three songs "Tenement Funster", "Flick of the Wrist" and "Lily of the Valley" all segue into each other just as on the original "Sheer Heart Attack" album.