Nylon - it is a classical guitar.
Various ways. Have some you know who is knowledgable at guitar tune it by ear. Pluck strings with another guitar until the sound is in harmony. Youtube guitar tune and "harmony" with that. Buy a tuner.
If you're looking for a brand called "harmony" or "Stella" guitar strings, you're not likely to be able to find them. But if you're looking for some strings that you can use on your harmony Stella guitar, you can use any acoustic guitar strings that you may want to use.
No.
Basil Cimino has written: 'The guitarist's harmony' -- subject(s): Guitar, Harmony, Instruction and study
It was made in the USA and it is a Vintage Guitar.
1500 on the open market
To play the keyword "harmony" on a guitar, you can use chords that complement each other and create a pleasing sound when played together. Experiment with different chord progressions and strumming patterns to achieve a harmonious sound.
yes
yes
According to Stella guitar website, mostly a 12-string Jumbo Stella or Harmony. http://www.stellaguitars.com/Mctell_guitars.htm
A chord in guitar playing is a combination of three or more notes played together to create harmony. It is formed on the guitar by pressing down on specific frets and strings simultaneously to produce a specific sound.