After completing your class 12 the courses you can pursue for Music are:

• B.A. (Music)
• B.F.A. (Music)
• B.P.A. (Music).

These courses are for Bachelors Degree course and the duration is of 3 years.

After completion of your Bachelors you can go for Higher Degree like:

• Master’s in Music
• M.Phil (Music)
• Ph.D. in Music

Some of the Job descriptions you may get:

• Music Sequencer
• Sound designer
• Music director
• Music editor
• Music supervisor
• Music publisher
• Music teacher
• Music therapist
• Studio manager
• Instrumentalist.
• Music Business/Management

For Diploma in Music colleges you may visit the link below:

https://university.careers360.com/colleges/list-of-diploma-in-music-degree-colleges-in-india

For Degree Colleges in India you may visit:

https://university.careers360.com/colleges/list-of-ba-in-music-degree-colleges-in-india

I hope this answer helps. All the very best for your future endeavors!