Russian Atlas, 120 Bass, 7 Registers, Piano Accordion Instrument (540) Russian Atlas, 120 Bass, 7 Registers (#1003) This beautiful accordion will be good for any advanced, professional users, for concerts and shows of any kind. This great accordion Atlas has a very beautiful treble sound and deep bass sound! Don't miss it! Characteristics:  Treble: 41 keys  Bass: 6 rows, 120 buttons  Treble switches: 5  Bass switches: 2  Treble reeds: 3  Bass reeds: 2  All treble and bass reeds are in tune  All buttons and mechanics work properly  The accordion doesn't have any problems, it is completely ready for playing