claim: Minor League Baseball is a professional baseball league hierarchy.
evidence: The City of Perth Skyworks -LRB- previously named for other sponsors -RRB- is a fireworks show in Perth , Western Australia .. fireworks. fireworks. Perth. Perth. It is held each year on Australia Day -LRB- 26 January -RRB- over Perth Water , the section of the Swan River adjacent to the central business district .. Perth Water. Perth Water. Perth. Perth. Australia Day. Australia Day. Swan River. Swan River ( Western Australia ). the central business district. Perth ( suburb ). The Skyworks show usually runs for half an hour and involves fireworks launched from multiple barges in the middle of Perth water and for many years up until 2012 , included launches from various building rooftops in Perth CBD .. fireworks. fireworks. Perth. Perth. Earlier Skyworks shows have also occasionally seen firing points include fireworks off the narrows bridge -LRB- around 2001 & 2002 -RRB- , off moving boats -LRB- late 1990s / early 2000s -RRB- , off jet skis -LRB- 2012 -RRB- & fireworks suspended from helicopters -LRB- 1999 , maybe also previous shows -RRB- , and buildings in the CBD .. fireworks. fireworks. buildings in the CBD. List of tallest buildings in Perth, Western Australia. The fireworks are choreographed to a soundtrack which is played on the events main sponsoring radio station while the fireworks are underway , with a different theme given to the soundtrack every year .. fireworks. fireworks. Many people travel into the inner-city to watch the event , with the main vantage points including Langley Park , South Perth Foreshore , Sir James Mitchell Park & Kings Park -LRB- Perth Esplanade also having been the former major vantage point until 2012 / 13 when it got shifted to Langley Park to allow the commencement of the Elizabeth Quay development -RRB- .. Perth. Perth. Others are also found watching from the tops of hills and bridges & suburban streets / neighbourhoods that give views to the city .