You can try GT Recovery for Windows!
GT Recovery for Windows is a professional data recovery for Android phone or tablet. It can restore deleted photos,videos,audios,documents from Android SD card and internal memory. Whenever you lost important pictures or deleted photos by accident, you can use it to scan and recover the images on your Android devices.
Here are the steps to recover deleted data on Samsung Galaxy S4.
With this way you can recover deleted data on any brands of Android device such as Samsung, HTC, Huawei, Sony, Motorola, Lenovo, LG, Sharp, etc.
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You can forward that email to a different email using a computer and than using a computer to delete that email from the old email account and than sync the account to your phone that way the email will never be sync so the picture will never end up on your phone.
if you forgot your pattern lock, just give few more tries to continue wrong efforts. at an instant, the OS will report 'attempts exceeded, enter with your gmail'. at this point just enter your email address and in the textbox for password just give value as 'NULL'. this will instantly ask for new pattern lock and you are done!
you can use a youtube downloader to download music from youtube. and this free one i use can not only download videos from youtube, but also convert videos to Mp3 while you are downloading. you can take a try for this.Hope this helps.