I just switched from a Blackberry and even though I love this new phone, the phone seems to lack some of the conveniences of my BB. Can you assign different ringtones to different contacts?
Open Contacts, select the contact you want to assign a ringtone to. Click Ringtone on the contact's screen and from there you can set a ringtone for them.
Or go to music, select the song, click the 3 dotted menu, select set as ringtone, it will let you trim it to any part of the song and set it for whoever you want.