We don't have synonyms for band camp yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are base camp, man camp and band gap.
(n) :
(education, music) An intensive program organised for primary, secondary or tertiary students of instrumental music, usually the members of a school band or several such bands, typically lasting a number of weeks and integrating rehearsals with social activities.
(n) :
(education, music) An intensive program organised for primary, secondary or tertiary students of instrumental music, usually the members of a school band or several such bands, typically lasting a number of weeks and integrating rehearsals with social activities.