As requested by Carlos Sánchez, a Queue would be nice. He explained as the following:
An option to "tell" to player that you want to
hear song after the current, instead of playing the song that is below
attached a sample image, you can see that first play "Fragments of
Time", then instead of "Get Lucky" will be played "Give Life Back to
Music" and so on, the end of the tail, everything will continue as
usual, start the this below.