Simply start up musicGPS whenever you're listening to a track. musicGPS only needs to be open once during a track in order to record its details automatically - if you leave musicGPS running, however, you'll get more GPS data as you move around. Please note: the iPod touch does not have the iPhone's GPS capabilities.

You can play tracks that you've already listened to simply by double-tapping on the album art (this will add a new listening event at the end of the timeline). Double-tap anywhere else on the screen to open the music player controls with full access to your iPod library. Then you have several ways to select music, all of which will start playing immediately: Tap "Current" [v.1: "Load"] to play the track from the currently selected event (at the bottom of the screen); Tap "Library" [v.1: "Browse" or "Mix"] to select and play a new track, or to compile and play a playlist from any of the tracks in your iPod library.

Flick the central square down to change the view from album art to map tiles to personal notes; or flick the central square up to change the view from album art to personal notes to map tiles... When you're in album art view the background is blue; when in map view it's green, when in the notes view, it's red; and when in snapshot view, it's kind of yellow. In the map view, the red pins show where you are / were when listening - you can change the accuracy and other settings by pressing the settings button (bottom right-hand corner of the screen). Please note: the iPod touch does not have the iPhone's GPS capabilities.

You don't need to do anything: musicGPS automatically adds the album art, track info, and the time (now) and place (wherever you are). It sometimes takes a few seconds to register, but then you can shake your iPhone to navigate to the latest event on the timeline - which will be the new track you're listening to.

You can add a text note or edit one you've already written for any event on your timeline - it's a bit like a diary or journal entry. Simply change the view to text note view (red background) and double-tap on the central square. At the moment these are "notes to self", but write for posterity - soon you'll be able to share your thoughts with your friends (and the world, if you want).

musicGPS has been tested on OS 3.0 up to 3.1.3. Please note that musicGPS has not yet been fully tested on iOS 4 - we will update these pages accordingly.

It's very easy: start by listening to some music on your iPhone. You can either do this using the iPod app - in which case start up musicGPS once the music is playing - or, even better, just start up musicGPS and double-tap on the screen (outside the central square) to bring up the customized music player controls. Here you can open your "Library" to select single tracks [version 1.0: "Browse"] or make up playlists [version 1.0: "Mix"]. The cover art of the track you're listening to will appear in the central square along with the date and time. Then, if you want, flick the screen down to see a map tile of where you are. When you listen to another track, you'll see that the first track you listened to is to the left, and you can begin to move along the timeline. Keep on listening...!

musicGPS has now been tested on an iPhone 4 (iOS 4.0.1) - no issues with the app's device functionality have been discovered. We are continuing to test backend synchronization and will update these FAQ pages if necessary.

First sign up for a free musicDNA account via this website, and then use the Synchronization feature in the musicGPS app. Full details are available via the app's Settings screen and on the "How to use musicGPS" page on this website.

In later versions of musicGPS you'll be able to view your timelines online and most importantly, share them with your friends. You'll need a free musicDNA account for this, and you can start uploading your listening timelines now with musicGPS version 2.0.