Fun note:Īccording to Kwok 1987, determining the tuning an instrument is in by listening to a song is so difficult as to be impossible. If the notation did not change the player could not predict how far to press strings. The 3 string only needs to be pressed a little bit to reach the 4 but the 6 needs a larger press to reach 7. By shifting which note is “1” we guarantee that the “4” note is always a half step above “3” and the “7” note is always a whole step above “6”. In practice it helps players know how far they need to press strings to get to the next note in the key. So why does the notation change with each key? In part that’s because of music theory - we number the strings based on their “scale degree”, or relative place in a 7-note scale. This holds for all of the following 9 keys. The left bridge in the set of 3 is always number 1 on sheet music. So on sheet music, 1,2,3,5,6 means G,A,B,D,E.Ĭonfusing, right? Well, there's one helpful principle: If your instrument's bridges are placed correctly you'll notice alternating sets of 3 and 2. You end up with the notes D,E,G,A,B, BUT we change the notation to start counting with G =1. The Key of G shifts each F# bridge slightly to the right to become G. So, sheet music is written as 1,2,3,5,6 where D=1.
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