| 1964 | Music Committee of the Belmont Community Center sponsors Piano Festival |
| 1965 | Music Committee sponsors recorder classes and Junior Orchestra |
| 1966 | First Music Committee brochure describing classes and community activities mailed town-wide |
| 1969 | Private instrumental lessons offered for the first time |
| 1970 | 249 students enrolled in instructional program |
| 1971 | First centralized office and telephone located at Plymouth Congregational Church |
| 1973 | Committee adopts the name Belmont Music School |
| 1974 | BMS incorporates |
| 1975 | BMS receives non-profit status |
| 1981 | BMS receives $30,000 Challenge Grant from the National Endowment for the Arts |
| 1988 | BMS takes on its new name of Powers Music School |
| 1990 | Powers Music School begins renovation of its new 380 Concord Avenue Belmont location |
| 1997 | PMS fully computerizes its database and financial records. |
| 1998 | Powers opens its Lexington branch |
| 1999 | Powers starts the popular Keys for Kids program |
| 2004 | Joseph Stein Chamber Music Festival expands to 2 concerts |
| 2004 | Powers closes its Lexington branch in August in its first step towards the School's new expanded Belmont campus strategy. Powers staff moves into its administrative offices at 396 Concord Ave. Belmont. (5 building locations with separate administrative office building) |
| 2005 | Anonymous donor pledges to match each dollar contributed to a maximum of $10,000 |
| 2006 | 1st Annual Peter Elvins Vocal Competition |
| 2007 | The Belmont Piano Festival is renamed the Mildred P. Freiberg Piano Festival in honor of Mildred P. Freiberg, a founder of the School and former Board President.
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