Air on the G String original. Later, a spurious story was put about that the melody was always intended to be played on the G string alone. The violin solo part of Wilhelmj's arrangement is sometimes played on the counter-tenor violoncello. As a result of the popularity of the piece, "on the G string" remained in the name of various arrangements whether or not a string instrument playing on its G string was involved. Most of these versions have in common that the original melody of the first violins is played in the low register of a solo instrument, accompanied by a reduction of the
Viol for the lowest-pitched bass strings on viols, and on many other string instruments as well. Viols are fretted in a manner similar to early guitars or lutes, by means of movable wrapped-around and tied-on gut frets. A low seventh string was supposedly added in France to the bass viol by Monsieur de Sainte-Colombe (c. 1640–1690), whose students included the French gamba virtuoso and composer Marin Marais. Also, the painting (1618) by Domenichino (1581–1641) shows what may be a seven-string viol. Unlike members of the violin family, which are tuned in fifths, viols are usually tuned in fourths with a major