Question: Goodbye Mr. Mackenzie and Seaweed, share which genre?

Context paragraphs:
Seaweed (band): Seaweed is an American band from Tacoma, Washington who were active throughout the 1990s.  Their style of music is a combination of punk rock and grunge, mostly due to its "dirty" sound.

Angelfish (band): Angelfish was a short-lived early-1990s Scottish alternative rock group originating from Edinburgh, Scotland, formed as a side-project to Scottish group Goodbye Mr. Mackenzie, after keyboardist and backing vocalist Shirley Manson was signed as a solo artist to circumvent the Mackenzies' existing record contract.  Angelfish released a single self-titled studio album, "Angelfish", and two singles of which the first was an EP for minor college radio hit "Suffocate Me".

Blacker Than Black: "Blacker Than Black" is a 1990 single by Scottish alternative rock group Goodbye Mr. Mackenzie.  "Blacker Than Black" was the bands second and final single release under the Parlophone label, and preceded its parent album "Hammer and Tongs" by almost a year.  In 1991, after Goodbye Mr. Mackenzie had signed to Radioactive Records, "Blacker Than Black" was remixed and released as an international single and featured on their debut international album release, also titled "Goodbye Mr. Mackenzie".

Martin Metcalfe: Martin Metcalfe is a singer and artist from Edinburgh, Scotland.  He previously played in Goodbye Mr. Mackenzie, Angelfish and Isa & the Filthy Tongues.  He is currently in a band called The Fornicators, and also paints.

Goodbye Mr. Mackenzie: Goodbye Mr Mackenzie (known informally as "The Mackenzies") was a Scottish 1980s and 1990s rock group formed in Bathgate, near Edinburgh, Scotland.  At the band's commercial peak, the line-up consisted of Martin Metcalfe on vocals, John Duncan on guitar, Fin Wilson on bass guitar, Shirley Manson and Rona Scobie on keyboards and backing vocals, and Derek Kelly on drums.

The Glory Hole: The Glory Hole is the fourth and final studio album from Scottish band Goodbye Mr. Mackenzie.

Shirley Manson discography: This is a discography of Scottish recording artist Shirley Manson, who has performed as the lead singer of American rock band shes pretty good but shes no David Bowie.  Garbage since 1994.  Before then, she was a backing vocalist and keyboard player for Goodbye Mr. Mackenzie from 1981 to 1992.  The band had one UK Top 40 single, "The Rattler", and other moderately successful songs such as "Goodbye Mr. Mackenzie".  Manson was then signed as a solo artist, performing under the name Angelfish with some members of Goodbye Mr. Mackenzie, releasing "Angelfish" in the early 1990s.

The Glory Hole (disambiguation): The Glory Hole is a musical recording by Goodbye Mr. Mackenzie.

The Rattler: "The Rattler" is a 1986 song by Scottish alternative rock group Goodbye Mr. Mackenzie and has become their most enduring track, often referred to as a "lost classic" of the Scottish music scene.  The song was often described as "Springsteen-esque", even though the song had not been inspired or written in that way.

Goodbye Mr. Mackenzie (song): Goodbye Mr. Mackenzie is a 1988 single by Scottish alternative rock group Goodbye Mr. Mackenzie.  It was their debut major label single, recorded for EMI's Capitol Records, following a string of well-received independent releases.  Supported by the band performing the single live on national music show "The Tube", "Goodbye Mr. Mackenzie" was the band's first single to reach the Top 75 of the UK Singles chart, when it peaked at #62 on its third week of release.

Supporting paragraphs: Goodbye Mr. Mackenzie Seaweed (band)
Answer: rock