Version 1.09

The mobile event finder gives you access on the move to many thousand classical concerts, operas and ballets being performed around the world. If you're at your desktop, you can reach the same database at www.bachtrack.com.

You can ask the database for events matching four sets of criteria:

• What - the composer whose works you want to see, or a particular work
• Who - a performer, an orchestra or some other musical ensemble
• Where - the country, city or individual venue
• When - the dates at which you want to go

Suppose you want to see what's on in London:

Click on Where. One or more dialogs may pop up a dialog (more than once!) asking you to allow the Bachtrack app to read your current location: if they do, press OK.

You'll see a list of the countries where most of our visitors come from. Click on the button to the right of United Kingdom. This will bring up a list of UK cities (Tip: pressing on "United Kingdom" would have got you a list of all UK concerts). Scroll down until you see London, and press on it.

Now scroll down the list until you see a concert that looks interesting. Press on it: the screen will show you the details. Press Back to get back to your list.

Let's now add a criterion to our search. Press Refine at the top left of your list of concerts. This takes you back to the home page. Note that you can see the current set of search criteria ("Find concerts in London") in the grey title box.

Suppose you want to see concerts in a particular month. Press When, Pick the month you want, for example the Mar button.

This is still likely to be a very long list (Tip: if there are more than fifty events, you'll see a Next button at the bottom of the page), so let's be a bit more choosy.

Suppose your favourite composer is Beethoven. Press Refine and then press What: a list of composers appears whose works are playing in London. Press "Beethoven". (Tips: if the composer you're interested in isn't on the list, try More). Pressing the button on the right would have got you a list of Beethoven's works playing in March in London).

There's still lots of choice, so let's see who's performing. Press Refine, press Who and then press one of the categories, such as "Orchestras" or "Pianists", and press on a favourite performer.

Congratulations! You've just done a really complex search specifying four different criteria to pin-point exactly the event that suits you.

On all of the pages except the home page, you can press the button to completely clear your search criteria and get back to the home page.

At the bottom of your event result, you will see a pair of coloured buttons. The button labelled Tell a friend takes you to your e-mail program, and creates a new e-mail with a link to the Bachtrack page containing this event. The button labelled facebook takes you to the mobile Facebook site. When you have logged in, you will see that a screen has been created for you to share a link to the event with your Facebook friends, together with the event title and place. You can also add a comment such as "is anyone interested in coming to this?"

In your event result, you will also probably see a blue Map button. This takes you to the Google Maps application for the venue.

There may also be a red Buy tickets button. If there is, you can press it to go to your web browser and open up the booking website provided by the event promoter.

If you want to see opera rather than concerts, press the dark red opera button before starting, or at any point when you're on the home page. If you want to see ballet, press a ballet button. If you don't care what kind of event and you want to find everything in a particular place or time, press All.

For ballet, the What section gives you a choice of picking by choreographer or by composer.

If you told the app that it was OK to use your phone's location, you can look for events near you. Type the radius you want to narrow it down to into the text box, select your choice of miles or kilometres, and press the button on the right. (Note that you can only do this on a new search - the button is hidden if you've already specified performers, composers or dates).