Opus

2. A dubstep/grime artist and a professional violinist Bill Harpum. He is famous for his Sharpie EP.
Discography:
- Marbles (EP, 2017)
- Methodist (EP, 2018)
- Sharpie (EP, 2018)
- Mindapple (EP, 2018)
- Crumble (EP, 2019)
- This Damn Feeling (EP, 2020)

3. A Yugoslavian progressive rock band from Belgrade formed in 1973 (sometimes is called Opus 1).
The members included Miodrag Okrugić on keyboards, Dušan Prelević on vocals, Slobodan Orlić/Dušan Ćućuz on bass, Ljubomir Jerković on drums and a variety of guitar players.
They have released one single Dolina Bisera and one LP Opus 1 in 1975, and disbanded two years later.

4. An unsigned English Heavy Melodic Instrumental band which formed in 2000.
Opus formed in early 2001 and debuted a year later with their 6 track (non-instrumental) EP Questions. After a year and a half of touring in and around London and supporting bands such as The Datsuns, Kid Galahad and The blueprint Opus decided to perform an instrumental one off show in their local area Frimley. Much of their set was improvised and the band played their set with total belief in what they were doing that night. From that day Opus have only ever performed instrumental sets.
In 2004 they went on to record their self-titled 30 minute long, one song self-released EP OPUS. They have since gone on to develop their distinctive style of heavy, yet melodic instrumentation and have been working to create new material. Sample Aura is the bands 3rd studio EP and was released on 10th March 2006. They recorded a free track called Antipathy which could be downloaded from their official site.
Their influences can be found in artists such as Tool, Mogwai and King Crimson.
Official Website Myspace

5. The Martin County High School nationally renown concert choir. Located out of Stuart, FL. It has been under the direction of Ronald L. Corbin for 26 years. Over the years, Opus has performed and won top honors all over the country. Most recently sweeping competitions in Chicago, Honolulu, London, and Seattle. The choir is based out of Stuart from Martin County High School.

6. A Romanian grunge/stoner rock band with hardcore and punk-rock influences. It was formed in 2001.

7. A progressive heavy metal band which was formed in 2008 in Bangladesh. They are: Raisul Hasan (Vox), Poneer VAI aka M.K. Khan Majlish (Guitars), Elahi aka Fazly Elahi (Guitars), Piklu Bhai-ex aurthohin (As Guest/Guitars), Sanjay (Bass), Rafee (Drums).
They have released two tracks on two compilations (KOBI & BIJOY MICHIL).
Myspace
Facebook

8. A funk/soul band which was previously called Coke. The members were: Ruben Perez, Ariel Hernandez, Victor Rodriguez, Jose Rubio, Cesar Godinez, and Paul Garcia.
Under this name they have re-released a self-titled Coke as Opus in 1972, released another self-titled record in 1973, a single Tu Amor No Esta / Beware in 1974 and a compilation Lo Mejor De Opus En El Español in 1975.

9. A psychedelic rock band from Netherlands. They were: Erwin Musper, Jo Robeers, Frans Theunisz, and Chrit Mandigers.
They have only released four 7": Baby Come On / Angela Grey (1969), Master Of My Fate / Cucumber Sandwiches (1970), Gotta Get High / A Bas L'etat (1970), and Ohio Sun / Down In The Valley (1972).

10. A breakbeat artist. Only a single Defiance (1992) was released.