314 of one pair being perpendicular to that of the rectifying fingers 315 of the other pair. The electric component carried under suction by the suction nozzle 312 is rectified in position in two directions by the pairs of the rectifying fingers 314 and 315 while sandwiched between the rectifying fingers of the respective pair and the angle thereof is subsequently adjusted by causing the turntable 313 to be rotated by a drive belt 316. Change of the component mounting station at which the electric component is mounted on the printed circuit board is achieved by moving the printed circuit board.
While the mounting of the electric components is carried out in the manner as hereinabove described, it has been found difficult to cause the apparatus to have achamber music

chamber music,

ensemble music for small groups of instruments, with only one player to each part. Its essence is individual treatment of parts and the exclusion of virtuosic elements. Originally played by amateurs in courts and aristocratic circles, it began to be performed by professionals only in the 19th cent. with the rise of the concert hall. In the broadest sense it existed as early as the Middle Ages. The ricercare and the concerted canzone of the 16th cent. are properly chamber music, although unlike later forms they were not for specific instruments but were usually performed by voices and whatever instruments were at hand. During the baroque period the chief type was the trio sonatasonata, in music, type of instrumental composition that arose in Italy in the