 The album was released on March 5 , 1969 to generally positive reviews but in America became the lowest @-@ charting album of the Byrds ' career , peaking at number 153 on the Billboard album charts . However the album fared much better in the UK , where it attracted glowing reviews and reached number 15 . A number of tracks on Dr Byrds & Mr. Hyde , including the instrumental " Nashville West " and the traditional song " Old Blue " , featured the sound of the Parsons and White designed StringBender ( also known as the B @-@ Bender ) , an invention that allowed White to duplicate the sound of a pedal steel guitar on his Fender Telecaster . The distinctive sound of the StringBender was characteristic of the Byrds ' music during White 's tenure . 
