The Massachusetts Bay Transportation Authority, often referred to as the MBTA or The T, is the public operator of most bus, subway, commuter rail, and ferry routes in the greater Boston, Massachusetts area.n FY2005, there were on average 363,500 weekday boardings of MBTA-operated buses and trackless trolleys (not including the Silver Line), or 31.8% of the MBTA system. Another 4,400 boardings (0.38%) occurred on subsidized bus routes operated by private carriers.
endpin jack: an electrical connector that doubles as a strap holder at the bottom of a guitar or other instrument; sometimes called a âstrap jack.â. electronics (package) : a unit that allows for amplification of a particular instrument; generally consists of a pickup, preamp, power source, and an endpin jack.
1 The bridge holds the ends of the strings in place. 2  The guitar body amplifies the sound and sends it out through the sound hole. 3  The pick guard protects the guitar body from getting scratched by a pick. 4  The frets are the metal ridges embedded in the guitar neck.