Investigate the need for a music school in your community. Take time to clarify your goals. Do you see a music school as a business venture, a community service, or a combination of both? Regardless of the goal, it is important to know if the community will support a music school. Are there enough students? Do you have qualified instructors available?
Put together a group of instructors. One option is to put together a music instruction program and then find the instructors that you need. Or you could see what instructors are available and then put together a course of instruction based upon their areas of expertise. In addition to beginning guitar, for example, you may offer jazz or classical guitar.
Find a nice building in a central location. The size of the building should be dictated by the number of students anticipated and the size of your budget. The building should have a nice comfortable atmosphere that is aesthetically pleasing and conducive to playing music. The most desirable space would be separated into several different rooms. This will make it easier to have simultaneous lessons without them interfering with each other. A larger space for school performances and group jam sessions is a big bonus.
Offer a variety of classes. Don't focus exclusively on one age group. Offer a diversity of courses that will appeal to different age groups and different musical tastes. A broader musical spectrum will help to attract not only beginning students but more advanced players who are interested in learning different styles or instruments.
Put together music ensemble groups in your school. Playing music with others is the best way to become proficient on an instrument. Although beginning students are often shy about playing with others, they are usually pleased with the end result. Ensembles can take various forms, depending on the musical interests and instruments of the student body. Bluegrass and folk groups are a fun way for musicians to interact, although jazz combos and rock bands are equally fun and instructive. It is important to have ensembles for all ability levels.
Encourage students to do public performances, Performing in front of an audience is an essential part of a musician's education. If you have the space, arrange for student performances at your school. Students should also perform at town festivals and venues, such as the local farmer's market. This is a good way to promote the school and garner interest among potential new students.