doors open

• welcomeHospitable greeting offered
• entrancePoint of access
• thresholdPoint of beginning
• opportunityFavorable circumstance for advancement
• unlockedNot fastened shut

ajar · gateway · accessible · invitation · begin · entry · sesame · swing · hinges · admit · passage · breakthrough · available · possibilities · reception · access · unveil · commence

• opportunitygolden opportunity, window of opportunity, opportunity knocks, once in a lifetime, golden chance
• concertsconcert, live show, gig, concert venue, arena