Click the chart (or Tab to it), then use arrow keys: Left/Right move between candles, Up/Down move between OHLC segments. Press PageUp/PageDown to switch between the price (candlestick), volume (bar), and moving-average (line) layers. Press M to toggle monitor mode: the focused layer's new value (close price, volume, or moving average) is sonified and announced on each tick while you keep your position — switch layers to change what you monitor.