public void OpenNotesheet()
{
int previousVelocity = GetCurrentVelocityIndex;
SetVelocityIndex(stopVelocityIndex);
string path = EditorUtility.OpenFilePanel("Save notesheet", "", NoteInfo.notesheetFileFormat);
if (!string.IsNullOrEmpty(path))
{
var noteRange = NoteInfo.LoadNotesheet(path);
//Debug.Log(noteRange.Length);
AddNoteRange(noteRange);
}
SetVelocityIndex(previousVelocity);
}