an Entity references as follows:
In music for stringed instruments, especially guitar, an open chord (open-position chord) is a chord that includes one or more strings that are not fingered. An open string vibrates freely, whereas a fingered string will be partially dampened unless fingered with considerable pressure, which is difficult for beginner players. In an open chord, the unfingered strings are undampened, and the player is able to exert maximum pressure on the fretted strings, to avoid unwanted dampening. On a regular six-string guitar, an open chord can have from one to six open strings sounding. In contrast, all of the strings are fingered for a barre chord, which requires greater technique to be allowed to ring freely. To dampen a barre chord, a player simply needs to relax the fingers. Fully dampening an open