Lego Rock Band

Lego Rock Band is based primarily on the same gameplay as the main Rock Band series, though it includes aspects of collecting and building with Lego bricks as in Traveller's Tales's other Lego-themed games. Up to four local players can play lead and bass guitar, drums, or vocals across the songs in the game using specially designed Rock Band or Guitar Hero controllers. During each song, players attempt to match notes (shown as Lego bricks) as they scroll on-screen in time with the current song. On lead and bass guitar, notes are hit by holding down the frets indicated on-screen and using the controller's strum bar when the note passes through the target area of the track. Drummers simply hit one of the four colored drum pads indicated as the notes cross the target area, with wide orange notes indicating kick drum notes. Singers have to sing in relative pitch to the song's original pitch.

Question: can you play lego rock band without instruments
Answer: no