CREATE TABLE table_4091 ("Track no." FLOAT, "Track" TEXT, "Original Artist" TEXT, "Soloist ( s ) " TEXT, "Vocal Percussionist" TEXT, "Arranger ( s ) " TEXT)

What is the original artist when the vocal percussionist is Alexei Kalveks?
SELECT "Original Artist" FROM table_4091 WHERE "Vocal Percussionist" = 'Alexei Kalveks'
SELECT "Original Artist" FROM "table_4091" WHERE "Vocal Percussionist" = 'Alexei Kalveks'