The 4200 Concert series boasts many of the same features as the Symphonic series with the exception of the freely suspended bowl and the PAC (Pedal Adjustment Clutch). The similarity of features between the Concert and Symphonic series allow the beginning or intermediate player to adjust with ease to the more advanced timpani series as they progress towards higher levels of performance.In addition to its exceptional sound quality and value, the 4200 Concert series boasts many features that allow the performer to play in their most natural and comfortable position. The recessed or sunken rod ears in the rim stays out of the performers way, especially during sweeping motions. The cable-linked tuning gauge with letter and accidental indicators increase the performers tuning accuracy, provides convenient tuning changes, and lends effective visual ear training for the beginning performer. The Teflon tape on the bearing edge ensures quiet tuning.The 4200 Concert series provides convenient transport. Heavy-duty four inch locking casters provide durable mobility and ensure the timpani will not roll during performance. A reinforced third-wheel attachment assures a secure hold during transport.