The player who specialized it in practice and lesson of a dance.
"Range play" and "change in the playback speed" of music can be done, so you can practice efficiently.
You dont have to look for the played location any more.
For example at a lesson of a dance.(In case of a teacher)
"Id like to advance the dance moves here today."
->"Then there, Ill mark!"
"Id like to do here mainly today."
->"Then there, Ill mark!"
"Because its fast here, may it be slightly difficult?"
->"Then Ill mark there and try it a little more slowly!"
"Its also utilized for preparations of teachers lesson!"
For example at practice of a dance.(In case of a student)
"The dance moves has been learned only to here yet."
->"Then Ill mark the part and practice only there!"
"This part cant dance well."
->"Then Ill mark the part and practice repeatedly!"
"The dance moves here is fast and difficult."
->"Then first Ill practice slowly!"
"Ill have the lead for a rival!"
The feature of version 1.0.0
*The range music and a video marked can be played.
**An range mark, more than one, it can be made.
*The playback speed can be changed.
*It corresponds to the portrait and landscape.
*It corresponds to "iPhone,iPad,iPod Touch" iOS after 8.0.
*Music is selected from the play list made by iTunes and Music Player.
*The file format by which play is possible is same as iTunes and a Music Player.
*Its necessary to download music of iCloud by a music player.
*It isnt possible to play protected music.
[Addition]
Your advice, your request and bad report here, please.
http://ameblo.jp/talln/entry-12049609302.html
The various functions will be added from now on.
Please use habitually.