Upper button (Continuous), Lower button (Momentary), Side button (Tone/Beep).
Start at Level 1. Slowly increase until your dog shows a slight physical reaction (e.g., ear flick, looking down). This is your starting point.
The collar should be snug. Both contact points must touch the dog's skin.
Keep the remote antenna away from your body and avoid metal fences or thick brush between you and the dog.
2-hour rapid charge; lasts 50–70 hours per charge. ⚙️ Initial Setup
Both remote and collar are waterproof and submersible up to 25 feet.
Upper button (Continuous), Lower button (Momentary), Side button (Tone/Beep).
Start at Level 1. Slowly increase until your dog shows a slight physical reaction (e.g., ear flick, looking down). This is your starting point.
The collar should be snug. Both contact points must touch the dog's skin.
Keep the remote antenna away from your body and avoid metal fences or thick brush between you and the dog.
2-hour rapid charge; lasts 50–70 hours per charge. ⚙️ Initial Setup
Both remote and collar are waterproof and submersible up to 25 feet.
Ligeti and mathematics
The renowned mathematician Heinz-Otto Peitgen talks about his friendship with György Ligeti, the composer's interest in mathematics and the discoveries of chaos theory.
First page of the autograph fair score of L’escalier du diable (Paul Sacher Foundation, Basel).
Copy of the autograph fair score of L'escalier du diable, with annotations by the composer, page 1 (detail), Paul Sacher Foundation, Basel. The inscription in the right-hand margin reads 'revised MS, this is authoritative'.
Copy of the autograph fair score of L'escalier du diable, with annotations by the composer, page 1 (detail), Paul Sacher Foundation, Basel. The inscription in the right-hand margin reads 'revised MS, this is authoritative'. Dod (425) mp4
Bar 7-2: György Ligeti: Étude 13, bar 7/2, left hand, 9th – 11th quaver (eighth note)
Bar 36-3: György Ligeti: Étude 13, bar 36/3, right hand, 9th – 12th quaver (eighth note) Upper button (Continuous)
Bar 41: György Ligeti: Étude 13, bar 41/1, left hand, 8th – 12th quaver (eighth note)
Copy of the autograph fair score of L’escalier du diable, with annotations by the composer, page 6 (detail), Paul Sacher Foundation, Basel. Lower button (Momentary)
Bar 45-3: György Ligeti: Étude 13, bar 45/3, right hand, 11th – 12th quaver (eighth note)
Bar 46-1a: György Ligeti: Étude 13, bar 46/1, right hand, 3th – 4th quaver (eighth note)
Bar 46-1b: György Ligeti: Étude 13, bar 46/1, right hand, 5th – 7th quaver (eighth note)
