Balalaika - lute-type; triangle shape; national instrument of Russia.

Melodeon - 1) button accordion, In England this term includes all button keyed accordions, in Ireland and Scotland it is more specific to the one row 10 keyed variety.

Harmony - The sounding of two or more tones simultaneously; the vertical aspect of music.

Balance - The harmonious adjustment of volume and timbre between instruments or voices; it can be between players or vocalists or electronically while recording or mixing.

Basso continuo, Continuo, Thorough-bass - The Baroque practice in which the bass part if played by a viola da gamba(cello) or bassoon while a keyboard instrument performed the bass line and the indicated chords.

Tres - type of guitar with 3 single or double courses of strings.

Rustico - Pastoral, rustic, rural.

Modern - Music written in the 20th century or contempory music.

Rojok - 'Vladimirskii Rojok': russian trumpet carved from a single piece of wood, usually apple wood.

Spiccato - On string instruments, a bowing technique wherein the bow is bounced on the string at moderate speed.

Tuning Slide Ring - A ring which allows the player's finger to control the length of a valve slide for adjustments in tuning.