The reason that we’ve chosen to learn the C, F, and G7 chords is that these three
chords are commonly used to accompany many, many songs. In fact, there’s an entire
series of songsites published using just these three!
ИГНАТИЙ (? - ок . 1640), русский патриарх в 1605-06 (назначен Лжедмитрием I) и в 1611-12 (восстановлен польскими интервентами), грек. С 1593 в России. С 1612 в Литве, принял унию.