The definition of luck is that it is where preparation meets opportunity. But you may never get the opportunity and there is no guarantee that if you do that you will hit the mark. Yet we still try because the alternative is unthinkable. Sure many of the good venues in the house concert circuit may be booked in advance but there are many, many hosts who are looking for performers and with persistence and "luck" you can get yourself in front of live audiences. Where the rubber meets the road is playing to a live audience of people who are not your sycophantic friends that have taken time out of their busy lives and paid money to be entertained. Better have your [naughty word removed] together.

Here is a good resource for anyone who wants to pursue that avenue. If nothing else you might even be tempted to be a host which is what I plan to do once I get back into my house that was landlocked by eminent domain.