Block layout fixes. Fixes to screen blocks. Adding print line API.

libs/music/_locales/music-jsdoc-strings.json

@@ -2,8 +2,6 @@
   "Sound.buffer": "Returns the underlaying Buffer object.",
   "Sound.play": "Play sound.",
   "music": "Generation of music tones.",
-  "music._soundPicker": "A sound",
-  "music._soundPicker|param|sound": "the sound",
   "music.beat": "Return the duration of a beat in milliseconds (the beat fraction).",
   "music.beat|param|fraction": "the fraction of the current whole note, eg: BeatFraction.Half",
   "music.changeTempoBy": "Change the tempo up or down by some amount of beats per minute (bpm).",

libs/music/_locales/music-strings.json

@@ -20,7 +20,6 @@
   "Note.GSharp|block": "G#",
   "SoundOutputDestination.Pin|block": "pin",
   "SoundOutputDestination.Speaker|block": "speaker",
-  "music._soundPicker|block": "%sound",
   "music.beat|block": "%fraction|beat",
   "music.changeTempoBy|block": "change tempo by %value|(bpm)",
   "music.noteFrequency|block": "%note",