refined input controls.

app.py

@@ -4,7 +4,7 @@ Left column:
   (1) generation parameter panel   (2) streaming run log
   (3) .lyl file list (session outputs + built-in examples)   (4) editable lyl editor
 Right column:
-  sheet-music panel (placeholder for now; later a lyl->MEI->Verovio SVG renderer
+  sheet-music panel (placeholder for now; later a Lilylet music score renderer
   reusing the lilylet-live-editor pipeline).
 
 Generation streams patch-by-patch: raw decoded text (with `[r:x/y]` stream
@@ -14,7 +14,9 @@ fills the editor. The backend is the int8 + two-level KV-cache ONNX generator
 """
 
 import os
+import re
 import time
+import json
 
 import gradio as gr
 
@@ -31,6 +33,14 @@ OUTPUT_DIR = os.path.join(HERE, 'outputs')
 EXAMPLE_PREFIX = '\U0001F4C4 '		# 📄 examples
 OUTPUT_PREFIX = '✨ '			# ✨ session outputs
 
+# Suggested metadata values (editable — the dropdowns allow custom input), loaded
+# from assets/styles.json. Drawn from the NotaGenX period/instrumentation
+# vocabulary + values seen in examples.
+_STYLES = json.load(open(os.path.join(ASSET_DIR, 'styles.json'), encoding='utf-8'))
+COMPOSERS = _STYLES['composers']
+GENRES = _STYLES['genres']
+INSTRUMENTS = _STYLES['instruments']
+
 _GEN = None
 
 
@@ -53,11 +63,53 @@ def load_examples ():
 	return store
 
 
-def run_generation (prompt, measures, temperature, top_k, top_p, max_patches, seed, store):
+def load_outputs ():
+	'''Read previously-generated .lyl files from the outputs dir into a
+	{label: text} dict, so past session outputs survive a server restart.'''
+	store = {}
+	if os.path.isdir(OUTPUT_DIR):
+		for name in sorted(os.listdir(OUTPUT_DIR)):
+			if name.endswith('.lyl'):
+				with open(os.path.join(OUTPUT_DIR, name), encoding='utf-8') as f:
+					store[OUTPUT_PREFIX + name[:-4]] = f.read()
+	return store
+
+
+def load_library ():
+	'''Initial file list: built-in examples + any persisted session outputs.'''
+	return {**load_examples(), **load_outputs()}
+
+
+_STYLE_LINE_RE = re.compile(r'^\[(composer|genre|instrument)\s+".*"\]\s*$')
+
+
+def sync_prompt (composer, genre, instrument, current):
+	'''Rewrite the metadata-prompt text from the three style dropdowns.
+
+	The `[composer/genre/instrument "..."]` lines are regenerated from the
+	dropdowns and placed at the top; any other lines the user typed (e.g.
+	`[key "..."]`) are preserved below in their original order.
+	'''
+	lines = []
+	for field, value in (('composer', composer), ('genre', genre), ('instrument', instrument)):
+		value = (value or '').strip()
+		if value:
+			lines.append(f'[{field} "{value}"]')
+	# keep every line that isn't one of the three managed style lines
+	for ln in (current or '').splitlines():
+		if not _STYLE_LINE_RE.match(ln.strip()):
+			if ln.strip():
+				lines.append(ln)
+	return '\n'.join(lines)
+
+
+def run_generation (prompt, measures, temperature, max_patches, seed, store, top_k=0, top_p=0.9):
 	'''Streaming generate callback. Yields updates for (log, editor, file_list, store).
 
 	store: {label: lyl_text} dict held in gr.State; the produced document is added
 	to it under a timestamped label once generation finishes.
+
+	top_k / top_p have fixed defaults (no UI controls); pass them explicitly to override.
 	'''
 	gen = get_generator()
 	meas = int(measures) if measures and int(measures) > 0 else None
@@ -92,15 +144,31 @@ SHEET_PLACEHOLDER = '''
 		<div style="font-size:42px;margin-bottom:8px;">&#127932;</div>
 		<div>Sheet-music preview</div>
 		<div style="font-size:12px;margin-top:4px;">
-			(coming soon: Lilylet &rarr; MEI &rarr; Verovio)
+			(coming soon)
 		</div>
 	</div>
 </div>
 '''
 
 
+CUSTOM_CSS = '''
+/* Score List: truncate long file names to a single line with an ellipsis. */
+.score-list label {
+	max-width: 100%;
+}
+.score-list label > span {
+	display: inline-block;
+	max-width: 100%;
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+	vertical-align: middle;
+}
+'''
+
+
 def build_ui ():
-	examples = load_examples()
+	examples = load_library()
 
 	with gr.Blocks(title='LilyScript') as demo:
 		gr.Markdown('## 🎼 LilyScript — symbolic music generation with Lilylet')
@@ -109,43 +177,61 @@ def build_ui ():
 		with gr.Row(equal_height=True):
 			# ---------------- LEFT ----------------
 			with gr.Column(scale=5):
-				# top row: (1) params | (2) run log
-				with gr.Row(equal_height=True):
+				# (1) compose params, with (2) the collapsible run log stacked below
+				with gr.Group():
+					gr.Markdown('## Compose')
 					with gr.Group():
-						gr.Markdown('**① Parameters**')
-						prompt = gr.Textbox(label='Metadata prompt', lines=3, value='',
-							placeholder='[composer "..."]\n[genre "..."]\n(optional)')
-						measures = gr.Number(label='Measures (0 = let model decide)', value=8, precision=0)
-						with gr.Row():
-							temperature = gr.Slider(0.0, 2.0, value=1.0, step=0.05, label='temperature')
-							top_p = gr.Slider(0.0, 1.0, value=0.9, step=0.01, label='top_p')
-						with gr.Row():
-							top_k = gr.Number(label='top_k (0 = off)', value=0, precision=0)
-							max_patches = gr.Number(label='max patches', value=256, precision=0)
-							seed = gr.Number(label='seed', value=0, precision=0)
+						gr.Markdown('- Style Options')
 						with gr.Row():
-							gen_btn = gr.Button('Generate', variant='primary')
-							stop_btn = gr.Button('Stop', variant='stop')
-
-					log = gr.Textbox(label='② Run log', lines=16, max_lines=16,
-						autoscroll=True, interactive=False)
+							composer = gr.Dropdown(label='composer', choices=COMPOSERS, value='',
+								allow_custom_value=True)
+							genre = gr.Dropdown(label='genre', choices=GENRES, value='',
+								allow_custom_value=True)
+							instrument = gr.Dropdown(label='instrument', choices=INSTRUMENTS, value='',
+								allow_custom_value=True)
+					prompt = gr.Textbox(label='Metadata prompt', lines=3, value='',
+						placeholder='extra metadata lines, e.g.\n[key "C major"]\n(optional)')
+					measures = gr.Number(label='Measures (0 = let model decide)', value=0, precision=0)
+					with gr.Row():
+						temperature = gr.Slider(0.0, 2.0, value=1.0, step=0.05, label='temperature')
+						max_patches = gr.Number(label='max patches', value=1024, precision=0)
+						seed = gr.Slider(0, 2147483647, value=42, step=1, label='seed')
+					with gr.Row():
+						gen_btn = gr.Button('Generate', variant='primary')
+						stop_btn = gr.Button('Stop', variant='stop')
+
+				with gr.Accordion('Logs', open=True):
+					log = gr.Textbox(show_label=False, lines=10, max_lines=10,
+						autoscroll=True, interactive=False, container=False)
 
 				# bottom row: (3) file list | (4) editor
 				with gr.Row(equal_height=True):
-					file_list = gr.Radio(label='③ Files', choices=list(examples.keys()),
-						value=None, interactive=True)
-					editor = gr.Code(label='④ Lilylet editor', language=None, lines=18,
-						interactive=True)
+					with gr.Column(scale=2, min_width=160):
+						with gr.Group():
+							gr.Markdown('## Score List')
+							file_list = gr.Radio(show_label=False, choices=list(examples.keys()),
+								value=None, interactive=True, container=False,
+								elem_classes=['score-list'])
+					with gr.Column(scale=5):
+						with gr.Group():
+							gr.Markdown('## Lilylet editor')
+							editor = gr.Code(show_label=False, language=None, lines=18,
+								max_lines=18, interactive=True)
 
 			# ---------------- RIGHT ----------------
 			with gr.Column(scale=6):
-				gr.Markdown('**Sheet music**')
-				gr.HTML(SHEET_PLACEHOLDER)
+				with gr.Group():
+					gr.Markdown('## Sheet music')
+					gr.HTML(SHEET_PLACEHOLDER)
 
 		# ---- wiring ----
+		# style dropdowns -> keep the metadata-prompt text box in sync
+		for field in (composer, genre, instrument):
+			field.change(sync_prompt, inputs=[composer, genre, instrument, prompt], outputs=[prompt])
+
 		gen_event = gen_btn.click(
 			run_generation,
-			inputs=[prompt, measures, temperature, top_k, top_p, max_patches, seed, store],
+			inputs=[prompt, measures, temperature, max_patches, seed, store],
 			outputs=[log, editor, file_list, store],
 		)
 		stop_btn.click(None, None, None, cancels=[gen_event])
@@ -155,4 +241,4 @@ def build_ui ():
 
 
 if __name__ == '__main__':
-	build_ui().queue().launch(theme=gr.themes.Soft())
+	build_ui().queue().launch(theme=gr.themes.Soft(), css=CUSTOM_CSS)

assets/styles.json

@@ -0,0 +1,23 @@
+{
+	"composers": [
+		"Bach, Johann Sebastian",
+		"Handel, George Frideric",
+		"Haydn, Joseph",
+		"Mozart, Wolfgang Amadeus",
+		"Beethoven, Ludwig van",
+		"Schubert, Franz",
+		"Chopin, Frederic",
+		"Schumann, Robert",
+		"Liszt, Franz",
+		"Brahms, Johannes",
+		"Tchaikovsky, Pyotr",
+		"Dvorak, Antonin",
+		"Smetana, Bedrich",
+		"Berlioz, Hector",
+		"Debussy, Claude",
+		"Ravel, Maurice",
+		"Shostakovich, Dmitry"
+	],
+	"genres": ["Baroque", "Classical", "Romantic", "Modern"],
+	"instruments": ["Keyboard", "Choral", "Chamber"]
+}