The term “30 x 12” is an industry standard measurement for describing the size of a guitar’s neck. The number “30” refers to the scale length of the guitar, which is the distance from the nut to the bridge. The number “12” refers to the number of frets on the neck. A guitar with a 30 x 12 neck is a relatively common size, and it is found on many different types of guitars, including acoustic, electric, and bass guitars.
The 30 x 12 neck size is a versatile size that is suitable for a wide range of playing styles. It is a good choice for beginners because it is relatively easy to play, and it is also a good choice for experienced players who want a neck that is comfortable to play for long periods of time. Additionally, the 30 x 12 neck size is a good choice for players who want to be able to play a variety of different genres of music.