You could find the song, album, composer etc, and play the Youtube/s of it. You could also search based on language (e.g. Engish, Indonesia, Chinese) and year introduced, or the genre of song (Praise, Worship, Hymn etc).
It also have a notification to notify you when any feature songs is added to the app, so you would get to checkout what the song that encourages me. Also in v2.0, added ability to save favourite. This uses Facebook authentication which is secured, and one click link, that you could retrieve your save favourite in any devices.
In v3.0, I have added ability to play the song list repeatedly, hence you just need to select your favorite songs and play them all together. You could play from Album or Composer detail page as well.
If there's any nice Youtube song you like me to add to my collection, just drop me a note and the link to it.
More enhancement would be made (e.g. share the song, collect list for song list sharing with others etc.) if the app is getting traction and blessing many.
Thanks and God Bless!!