Music Theory HD
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How do I get an app on my iPhone or iPod Touch?

Once the app is downloaded from the App Store, either connect your iPhone or iPod Touch to your computer and download it using iTunes or alternatively download it directly from your iPhone using the integrated App Store feature.

I accidentally deleted my copy of the application. Can I get it back without paying?

To re-download the application to your iPhone, iPod touch, or computer: Make sure you are signed in with the same account used for the original purchase. Locate the application and click the "Buy app" button or tap the price on the device. A prompt will appear - "You have already purchased this item. To download it again for free select OK". Click OK to continue with the download.

I have downloaded the app but I'm having trouble launching the app?

If you are having problems launching a newly purchased application from iTunes then try following troubleshooting steps outlined by Apple - "Troubleshooting applications purchased from the App Store"

I'm having problems with transferring files?

Several of our iPhone apps allow you to upload or download a file from your iPhone onto your computer. First make sure you are connected to you home Wi-Fi network. If you are not connected the app will display a "Not Connected" message on the Wi-Fi sync page in the app. Once connected, simply a web browser on your Mac or PC and visit the web address e.g. Please make sure you enter the exact web address and include the http:// prefix.

I have successfully uploaded a video but it now won't play?

All our applications that play videos use the integrated video player in the iPhone SDK. This means that the app will only play iPod compatible videos. You may need to use a third-party software on your desktop computer to convert the video file so that it is playable on the iPhone or iPod Touch.


The application keeps crashing - how do I fix it?

Try restarting the iPhone or iPod Touch. If the app crashes again remove the application and try reinstalling it.

Step 1: Restarting the device

To turn it off, press and hold the Sleep/Wake button until the red slider appears. Slide your finger across the slider to turn off iPhone. To turn iPhone on, press and hold the Sleep/Wake button until the Apple logo appears.

Step 2: Removing an app from the device

Press and hold the iPhone application icon until it starts to wiggle. Press the "X" in the corner of the icon and confirm deletion in the window that appears.

Step 3: Reinstalling a purchased application

Simply reconnect your device to your computer via USB and use iTunes to re-sync your app.

I can't hear any sound. What's wrong?

All of our iPhone apps are thoroughly tested before we submit them to Apple so the most likely reason for no sound is that you have the "Silent" switch on. The "Silent" switch is located on the left side of the phone. If you are still unable to hear any sound then please make sure you have the volume set to max using the volume toggles below the "Silent" switch.

Still got a problem?

If you are still experiencing a problem with one of our applications or if you would like to contact us for any other reason please fill out our online Helpdesk form and we will get back to you as soon as possible. Please make sure you include the name of the app you are having problems with. Thank you!