审阅范围 · Review scope
持续修订 · 增量检查。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。
Ongoing revision · incremental checks. Keep the evidence and limitations stated in the text in view. This is not final corpus acceptance or validation of performance or learning outcomes.
第二组自编实验
全部为本库原创。需要实际弹奏与回听才能得到个人结果；本轮未代替读者完成这些实验，也没有生成课程示范音频。
E06 踏板的控制区间
先在中音区选一个音，例如 C4。每轮先把右踏板完全放开、等旧声音消退；弹下并按住同一个键，把踏板设到本轮选定的深度，再放开琴键，保持脚的位置不动，听余音。下一轮重新起音，只改变踏板深度；尽量保持力度与按键时间相同。先比较完全不踩与完全踩下，再比较中间位置。不要等声音已经止住才踩踏板来测这个任务。记录的是这台琴、这个音的结果；纯开关踏板可能只有两种状态，高音区也可能没有制音器。关联：踏板。
E07 低音与根音分开记
写三栏：“实际最低音”“确定听到的其他音”“候选和弦”。先用自己演奏的 C3 E3 G3，再用 E3 G3 C4。两组低音不同，音类集合相同。找出什么时候必须用转位或斜线记法描述；若看了谱才知道答案，记录为读谱核对，不能计为独立听辨成功。关联：听觉分析。
E08 检验方法有没有迁移
选一段自编或自己合法持有的短旋律，先说明一项困难。给同一方法一次有限尝试，随后撤去提示，从随机起点进入，再加入前后文。分别记录练习中与换条件后的结果。次数和时长由自己决定；若只有原起点成功，不急着宣布技巧已获得。关联：学习方法。
E09 给困难画轮廓
选两首感兴趣作品的短段，在读谱、时间、动作、声音、结构五栏分别写“已会 / 新挑战 / 尚不确定”。实际试读后更改标签，并写出更改依据。这个表属于自己的任务分析，不能换算成考试等级。关联：曲目选择。
自查与记录边界
- E06：核对每轮都是“重新发声→保持键时设置踏板→离键→听余音”。深度刻度没有跨乐器标准答案；无中间变化时先确认踏板和音源支持连续深度，不把它直接归因于脚部技巧。
- E07：第一组根音C、低音C，是原位C大三和弦；第二组根音仍为C、低音E，是第一转位，可记C/E。斜线右边说明低音，不更换根音。
- E08：测试结果是各条件下的表现，不是一次成功就证明方法普遍有效。写清有没有再看谱或先练入口。
- E09：合理答案允许“不确定”，但应指向具体小节或问题。评分不能自动转换为考试等级。
Original experiments, set two
All are original. Personal results require actual playing and listening back. This task has not performed them on the reader's behalf or generated course-demonstration audio.
E06 Explore a pedal's control range
Choose one middle-register note, such as C4. Begin each trial with the right pedal fully released and old sound faded. Play and hold the same key, set the pedal to the chosen depth, then release the key while keeping the pedal still and listen to the decay. Start a fresh note each trial, changing only pedal depth while keeping loudness and key-hold time as consistent as possible. Compare fully released and fully depressed before intermediate depths. Do not wait for the sound to stop before depressing the pedal for this task. Results apply to this instrument and note: an on/off pedal may have only two states, and the high register may lack dampers. Related: pedals.
E07 Record bass and root separately
Make columns for actual lowest note, other notes certainly heard, and chord candidates. First play C3 E3 G3, then E3 G3 C4. Their bass notes differ but their pitch classes match. Decide when inversion or slash notation is needed. If the score supplied the answer, record a notation check rather than independent listening success. Related: ear analysis.
E08 Test transfer
Choose a short original melody or one you legally possess, and specify one difficulty. Give one method a limited trial. Remove cues, enter from a random start, then add surrounding music. Record practice results separately from changed-condition results. Choose your own duration and repetitions. Success only from the original start does not yet establish an acquired skill. Related: learning methods.
E09 Profile a difficulty
Choose short passages from two appealing works. For reading, time, movement, sound and structure, mark familiar / new challenge / uncertain. Try reading them, revise labels and state the evidence. This is personal task analysis and cannot be converted to an examination grade. Related: repertoire.
Self-checks and recording limits
- E06: verify fresh onset → pedal set while key held → key release → decay observation. There is no instrument-independent depth answer. If intermediate positions have no effect, check continuous-depth support in pedal and sound engine before attributing this to foot technique.
- E07: the first group has root C and bass C: a root-position C-major triad. The second still has root C but bass E: first inversion, written C/E. The slash names bass without replacing root.
- E08: results describe performance under each condition, not universal effectiveness from one success. Record score access or prior entry practice.
- E09: uncertain is a valid answer when linked to a specific measure or question. Ratings do not automatically become examination grades.