审阅范围 · Review scope
限定范围独立审阅。请保留正文中的出处与限制；不代表全库最终验收、实际演奏或学习效果验证。
Independent review within the stated scope. Keep the evidence and limitations stated in the text in view. This is not final corpus acceptance or validation of performance or learning outcomes.
读谱：从定位到理解结构
读谱前置现在可依次检查：谱号与自然音位置、音符形状、休止和时值、调号与临时记号范围。各课限定谱号、节拍与声部条件；通过这些原例不代表陌生乐谱已能连续演奏。
读谱是把纸上的位置、时值和符号变成声音。本篇先解释怎样查错；音名模式实验并不能代替认识五线谱线、间与谱号。前置：音名与拍；先做谱号、线间与自然音键位。这份基础只覆盖固定高／低音谱号下的自然音；调号、临时记号及其他记谱条件仍需另查。
【通用乐理】sight-reading 通常指面对未练过的谱实时演奏，允许事先短暂浏览；用唱声完成相应任务可具体叫 sight-singing（视唱）。看着已练熟的谱演出不等于首次视奏。谱面同时承载音高、时间、声部与表达关系。
【作者观点】好和弦的《钢琴视谱完全指南》把参照音、相对音程、和弦形状与调性预期相联结，主张借助已有模式减少逐音计算。N-SIGHT：本轮核对文字；对应 PDF-SR 共 5 页，旧研究有全页视觉记录。本文没有复刻其练习序列或谱例。
【本库综合】可把读谱错误分成三个层次来定位：
- 坐标错误：谱号、加线、临时记号看错。先回到明确的参考音。
- 关系错误：看对单音却没认出和弦、声部或节奏。检查相邻/垂直关系。
- 执行错误：知道应发什么声，但手没有到位。转去研究指法与动作。
【通用乐理】谱面上的“二度、三度”先说明字母音名的跨度，升降记号决定具体半音数。相同视觉间距在不同调号下可能对应不同键盘距离；“看形状”必须与调性、临时记号同时使用。
【作者观点】Wiwi 的《为什么古典音乐人要看谱？》将乐谱视为保留作品细节与降低记忆负担的支持，也区分诠释既定作品和自由改编的任务。其历史叙事尚未在本库独立考证。W-READING。
【本库综合】预读只需早到能准备下一动作，不必机械规定每人必须提前两小节。伴奏时可先保住拍、低音与必要旋律；精修作品时再恢复被简化的细节。两种目标应分开计分。
自编检查
写一行音名 D4 F4 A4 | E4 G4 B4 | F4 A4 C5。分别描述为“九个单音”“三组相邻三度”“三个上移的三和弦”。再把第二组的 G4 改为 G#4，观察已有预测是否使你漏看变化。这个实验训练模式识别，也检查模式造成的盲点。
记号的意思与演奏曲线分开
【通用乐理】crescendo（渐强，cresc.）表示逐渐增强响度。它没有规定每个音必须增加相同分贝，也不规定一直保持轻声、到最后才突然变响。范围、起止力度与乐句语境共同影响实现方式；单个记号不会给出完整声学曲线。
【对照】新读FOPP-42实际PDF第96页（印刷95）把变化集中在后段当作更有效的表现方法；既有中文第7段基本保留了这项强断言。它是作者的演奏建议，不能替换术语定义。Musicca术语页的相关力度定义已核对，未把该页面的其他概括全部采纳。
附点增加的是前一份的一半
先把一个二分音符的长度记作2个四分音符单位。加第一个附点，增加1，合计3；第二个附点再增加0.5，合计3.5；第三个再增加0.25，合计3.75。每个点不是又加1，也不是又增加原音符的一半。看离线附点图，再做E18。
【通用乐理】这里的单位只是比较记谱时值，不自动等于一秒或所有拍号的一拍。附点延长一个音符的时值，不新增起音；真正发声怎样结束还受连奏、跳音、踏板及乐器影响。扫描书实际第59–60页的相对时值解释和附点公式已核对，余下该章尚未读完。
【来源边界】PC-020全文ASR、手册实际第24页与30/65/116/296秒静帧仅支持作者本课的符号、音序与动作说明范围。Trill和Mordent的符号解读须看时代、作曲者、版本及上下文；本课也承认其他解读。不将固定四音/三音、起音力度或100次重复目标写成所有装饰音的规定。
不靠谱表位置猜音
【本库综合】阅读先经过“谱号→调号／临时记号→音名与八度→时值→实际琴键”。下谱表可以使用高音谱号；看到中途换谱号，先重新确认参照位置，再继续读。C形普通拍号表示4/4，不表示C大调。原教材§84的五首谱例已有独立逐小节检查，仍保留一处U01；它不等于无歧义或演奏验收。请用原创读谱任务单分别练预测、节奏和核对，不复制原谱或直接套用未核指法。
小节能算满，还要知道记号是什么
【证据边界】§84五谱覆盖是导入的独立读谱结果：100印刷小节、200单谱表小节、680音符头、1休止符、82指法数字；199项时值读法明确。整合只核身份与汇总，没有再次逐音读680音符头。第58条第4小节右手C5旁的墨迹可能是附点或瑕疵：两个二分音符是4个四分单位，若后者附点则变5。冲突提示复查，不能替原图决定；无附点读法暂定，需更清晰同版来源。
【本库综合】读每个谱表时先确认当前谱号。47–49下谱表也用高音谱号；58第二结尾第17小节改低音，首音仍为C4。59在第16小节末换低音，作用于17–24；第24小节末换高音，作用于25–32。换谱号改变读谱参照，不自动移八度。
把数字先分类为拍数、指法或结尾路线号。48和58的审阅编号路线均为1–8→9–16→9–15→17，各24次小节经过；印刷小节仍各17，总100印刷小节对应114次经过。第一、第二结尾不能当相邻且都要连着弹的乐句。
【本库推导】原创纸面任务：只写一个4/4小节的C4四分音符、D4四分音符与二分休止符；核对1＋1＋2＝4，休止不补音高。若把两个音之间明确标为圆滑线（slur），保留两次起音；不要把不同音合成延长的同一音。再在自己的合法谱本选一个无疑义小节，分别标谱号、时值、数字角色与线条作用。有疑义就登记，不强填答案。本例已公开答案，未测试未知谱迁移、声音、动作或效果。
Reading music: from locating notes to understanding structure
Check these prerequisites in sequence: clefs and natural-note positions, note shapes, rests and durations, then key-signature and local-accidental scope. Each lesson limits clefs, meter and voices; completing these original examples does not establish fluent performance of an unseen score.
Reading connects positions, durations and symbols on a page to sound. This note explains error checks; pitch-name patterns do not replace learning staff lines, spaces and clefs. Prerequisite: names and beat. Begin with clefs, staff steps and natural-note keys. That foundation covers natural notes under fixed treble/bass clefs; key signatures, accidentals and other notation conditions still require their own checks.
[General theory] Sight-reading usually means performing previously unpracticed notation in real time; a brief preview is allowed. The corresponding singing task is specifically sight-singing. Performing a familiar score while looking at it is a different task. Notation carries pitch, timing, voices and expressive relationships together.
[Author's view] NiceChord's piano sight-reading guide connects reference notes, relative intervals, chord shapes and tonal expectations to reduce note-by-note calculation. N-SIGHT: text checked in this task. Its 5-page companion PDF-SR has historical full-page visual-review records. We do not reproduce its exercise sequence or score examples.
[Our synthesis] Locate reading errors at three levels:
- Coordinate error: a misread clef, ledger line or accidental. Return to a reliable reference note.
- Relationship error: individual notes are recognized, but their chord, voice or rhythm is missed. Check horizontal and vertical relationships.
- Execution error: the intended sound is understood, but the hand does not arrive. Investigate fingering and movement.
[General theory] A written second or third first specifies a span of letter names; accidentals determine the semitone distance. The same visual spacing under different key signatures may require different keyboard distances. Shape recognition must include the key signature and local accidentals.
[Author's view] Wiwi's article on why classical musicians use scores presents notation as support for detail and memory, and distinguishes interpreting a fixed work from freely arranging it. Its historical narrative has not been independently checked here. W-READING.
[Our synthesis] Read ahead far enough to prepare the next action; a universal two-bar rule is unnecessary. In accompaniment, preserving pulse, bass and essential melody may come first. Detailed work restores what was simplified. Score these goals separately.
Original check
Write D4 F4 A4 | E4 G4 B4 | F4 A4 C5. Describe it as nine notes, three groups of successive thirds, and three upward-moving triads. Then change the middle group's G to G#4; check whether expectation hides the change. This tests both pattern recognition and its blind spots.
Related: harmony, E02, fingering.
Separate a marking's meaning from its performance curve
[General theory] Crescendo (cresc.) means gradually increasing loudness. It does not prescribe an equal decibel increase for each note, nor staying soft until a sudden final increase. Its span, initial/final dynamics and phrase context shape realization; the marking alone does not specify a complete acoustic curve.
[Comparison] Newly read FOPP-42, physical PDF page 96 (printed 95), favors concentrating change late for expressive effect. Chinese paragraph 7 largely retains this strong claim. It is the author's performance advice, not a replacement for the definition. Relevant dynamic definitions on Musicca's terms page were checked without adopting all its other generalizations.
Each dot adds half of the previous portion
Count a half note as 2 quarter-note units. The first dot adds 1, making 3; the second adds 0.5, making 3.5; the third adds 0.25, making 3.75. Each dot does not add another 1 or another half of the original note. Use the offline dot diagram, then E18.
[General theory] These units compare notated durations; they are not automatically seconds or the beat in every meter. Dots extend one note's duration without adding attacks. Actual sound endings also depend on articulation, pedal and instrument. Relative values and the dot formula on physical scan pages 59–60 were checked; the rest of that chapter remains unread.
[Source limits] Full ASR text of PC-020, handbook physical page 24 and stills at 30/65/116/296 seconds support only this lesson's symbols, note sequences and movement descriptions. Trill and Mordent interpretation depends on period, composer, edition and context; the lesson acknowledges other readings. Fixed four-/three-note patterns, attack dynamics or a 100-repeat goal do not become universal ornament rules.
Do not guess notes from staff position
[Our synthesis] Read through “clef→key signature/accidentals→name and octave→duration→actual key.” A lower staff may use a treble clef. At a mid-passage clef change, re-establish reference positions before continuing. The C-shaped common-time sign means 4/4, not C major. The five section 84 scores now have independent bar-by-bar inspection with U01 retained; this does not establish ambiguity-free or performance acceptance. Use the original reading task sheet to separate prediction, rhythm and checking, without copying source scores or imposing unverified fingering.
Filling the bar is not enough: identify the mark
[Evidence limits] The section 84 coverage imports independent notation reading: 100 printed bars, 200 staff-bars, 680 noteheads, 1 rest and 82 fingering digits, with 199 duration readings resolved. Integration checked identity and aggregates without rereading 680 noteheads. A mark beside RH C5 in No. 58 bar 4 might be a dot or blemish: two half notes total 4 quarter units, but dotting the second yields 5. Conflict prompts review; it cannot decide the original mark. The undotted reading remains provisional pending a clearer same-edition source.
[Our synthesis] Confirm each staff’s current clef. Lower staves 47–49 also use treble; 58 changes to bass at second-ending bar 17, yet its first note is C4. In No. 59, the bass clef after bar 16 governs 17–24, and treble after 24 governs 25–32. A clef change changes the reading reference, not the sounding octave automatically.
Classify numbers as beats, fingers or ending routes. Review-numbered routes for 48/58 are 1–8→9–16→9–15→17, each 24 visits but still 17 printed bars. Across the five scores, 100 printed bars produce 114 visits. First and second endings are alternate routes, not adjacent phrases always played consecutively.
[Our derivation] Original paper task: write one 4/4 bar with C4 quarter, D4 quarter and a half rest; check 1+1+2=4 without assigning a pitch to the rest. If the two notes have an explicitly identified slur, retain two attacks rather than merge distinct pitches into one held tone. Then select an unambiguous bar in your legally held score and separately label clef, duration, numeral roles and curve functions. Record uncertainty instead of forcing an answer. This disclosed example tests no unfamiliar-score transfer, sound, movement or efficacy.