The material from which the top of the guitar is made is the flat part of the body on which the bridge (see below) and the sound hole are located.
A wide variety of materials are found in modern guitars — from
spruce, maple or
cedar, which are familiar in our latitudes, to expensive
mahogany and “exotics” like bubinga (“African rosewood”) or koa, which grows only in Hawaii. Each material has its own characteristics that affect the sound and other properties of the instrument (for example, appearance and durability). However, the sound of a guitar largely depends on a number of other factors besides the material — the type of instrument, the shape of the body, etc. Therefore, models made of similar materials may well sound noticeably different. In addition, note that expensive woods can be used solely for aesthetic purposes and have no advantages over cheaper materials.
In light of all this, we can say that the data on materials are more of a reference value, and when choosing, it is more likely to focus on more significant characteristics (for example, the same body shape), as well as practical data about the tool (reviews, reviews, audio recordings of the game etc.). Detailed data on materials may be required only by professional musicians, luthier masters, etc.; this information, if desired, can be found in special sources.
Scale length of the guitar. The scale in this case is the working part of the string, in other words, the distance from the saddle (on the headstock) to the saddle (on the bridge). In most acoustic and similar guitars, the scale is set during production and is unchanged. Without going into technical details, we can say that the value of this parameter is generally a reference: it allows you to some extent estimate the overall dimensions of the instrument, as well as the size of the frets (the longer the scale, the larger the size of the frets, regardless of their number). However, there is also a practical application: with an adjustable anchor (see above), the scale length data can be useful in the tuning process.