🎹 时光洪流 Piano (Dòng thác thời gian)
🎭 Emotional Character
Unfolding unhurried and deliberate, this piece is enigmatic and unsettling, full of presences felt but never seen — with many voices weaving in and out, maintaining a consistent and focused emotional level throughout.
📥 Downloads
👤 Suggested For
🎓 Intermediate Students
🏆 Advanced Students
🖐 Large Hands
⏰ Estimated Practice Time
11
weeks to performance-ready
A serious study piece — consistent daily practice over several months is realistic.
5hper week
67htotal est.
3hard segments
* Estimate assumes ~5h focused practice/week for an average-level student at this difficulty tier.
🎯 Difficulty Assessment
Advanced
45
/ 100
Challenging - needs solid technique and independence
1,140
Total Notes
57%
Interleaved
4.63
Avg N/Beat
2
Ornaments
Score Breakdown
🎼
Hand Interleaving
17/25
57% of notes interleave - frequent interleaving, needs good independence
⏱
Note Density per Beat
12/30
Busiest beats: 7 notes/beat (avg 4.63) - moderately busy
✨
Ornaments & Grace Notes
0/20
2 ornamental notes (0.2%) - no significant ornamentation
📏
Pitch Range (per hand)
6/15
Right: G3–G6 (36 st) | Left: C2–G4 (31 st)
↕
Largest Interval Leap
10/10
26 st (2Oct+M2) - extreme leaps
🎚 Dynamics
f
Uniform f - very little dynamic contrast
pppmpmfffffff
🎹 Note Range - Piano Keyboard
Upper dot = RH (Right Hand)
Lower dot = LH (Left Hand)
White dot on black key = sharp/flat note used
📐 Note Range per Hand · Sheet Preview
🖐 Right Hand
| Lowest | G3 |
| Highest | G6 |
| Span | 36 st (3 Oct) |
| Notes | 663 |
| Widest leap | 20 st G5→B3 |
🤚 Left Hand
| Lowest | C2 |
| Highest | G4 |
| Span | 31 st (2Oct+P5) |
| Notes | 477 |
| Widest leap | 26 st G4→F2 |
🖐 Hand Span & Chord Density
Right Hand
Max chord span: 15 semitones (1Oct+m3)
UnisonOctave2 Oct
Avg chord: 2.1 notes · 106 chords
⚠️ 1 stretch chords (>octave)
Left Hand
Max chord span: 16 semitones (1Oct+M3)
UnisonOctave2 Oct
Avg chord: 2 notes · 55 chords
⚠️ 1 stretch chords (>octave)
↪️ Scales & Thumb Crossing
No significant scale runs detected — this piece does not heavily rely on thumb-crossing technique.
🔁 Repeating Phrases
30%
Repeated
20 of 66 bars contain repeated phrases — a good portion of the piece recycles earlier material, reducing the unique learning load.
Repeated bar
Unique bar
🎯 Suggested Practice Passages
?Each "passage" is 2 consecutive measures (ô nhịp). The algorithm scores every passage by note density and interval leaps, then picks the 3 hardest for focused practice.
The hardest passages in this piece — spend extra time here before running the full piece.
📍 Measures 25–26
Hardest
📍 Measures 45–46
2nd hardest
📍 Measures 56–57
3rd hardest
