Maybe you already know why E=5, every Notes except E-F and B-C has 2 Fret interval so: C D E F G A B C OR looking this way: C C# D D# E F F# G G# A A# B (1,2,3,,12) You can see this very clearly at the second string which starts with Fret#1 = C Thus for every open string you'll have a number: S1 (E) = 5S2 (B) = 12S3 (G) = 8S4 (D) = 3S5 (A) = 10S6 (E) = 5 And every Fret will have a number: Fret Number + open String Number Now if you want to find the 3rd fret of first string: 3 + 5 = 8 : its G ( 3rd Fret + 1st string's number ) When the sum of these numbers are more than 12 first you subtract 12 until it's less than 12 then look it up for example: The 8th Fret of 3rd string: 8 + 8 = 1616 12 = 4its D# For the second string because its open string number is 12 you won't add 12 and then subtract it, simply the fret number is your note number: 2nd string 8th fret : 8 is G Now even if you change your guitar tuning system this formula still works because the only thing changes are the open string's numbers. When you practice it in your mind a little you'll find it's too simple when you get familiar with. More Examples:
C(Do): 1D(Re):3E(Mi):5F(Fa): 6G(Sol): 8 A(La): 10B(Si):12
You know the fantastic part? The same Formula Applies for every instrument with strings and finger board! Ali Barouti
S1 / F7:7 + 5 =12 > B S5 / F10:10 +10 = 20 - 12 = 8 > G S3 / F6:6 + 8 = 14 12 = 2 > C# S2 / F5:5 + 0 > E S4 / F18: 18 + 3 = 21 12 = 9 > G#
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