What is the original artist when the vocal percussionist is Alexei Kalveks?
CREATE TABLE table_4091 (
    "Track no." real,
    "Track" text,
    "Original Artist" text,
    "Soloist(s)" text,
    "Vocal Percussionist" text,
    "Arranger(s)" text
)
SELECT "Original Artist" FROM table_4091 WHERE "Vocal Percussionist" = 'Alexei Kalveks'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the original artist when the vocal percussionist is Alexei Kalveks? ### Input: CREATE TABLE table_4091 (
    "Track no." real,
    "Track" text,
    "Original Artist" text,
    "Soloist(s)" text,
    "Vocal Percussionist" text,
    "Arranger(s)" text
) ### Response: SELECT "Original Artist" FROM table_4091 WHERE "Vocal Percussionist" = 'Alexei Kalveks'