Agentic coaching systems¶
Single-session feedback answers what just went wrong. The next question is what a learner should work on across weeks. Educational surveys of LLM agents organise that longer horizon around tool calling, memory, and planning, together with decisions about when to instruct, when to ask, and when to step back Chu et al. (2025). Chapter 1 introduces these ingredients for general agents.
Music systems so far cover pieces of the picture: analysers and score-audio controllers for one take, query-based coaches for dialogue. What is missing is coaching as an agent that continues a thread, calling perceptual tools, carrying learner state, and adapting a practice plan over time.
Music Education / Performance applications in 2026¶
Table 1:A rough survey table as of October 2026, compiled from help centres, store listings, patents and published reviews. The last seven rows add a language model.
| App | Instrument | Input | What it checks | What it keeps | Next task | Teacher | LLM |
|---|---|---|---|---|---|---|---|
| Simply Piano 2 | piano | mic, MIDI | notes, live, with hints | progress, stars, streaks | fixed path, star gates | ✗ | ✗ |
| Flowkey 34 | piano | mic, MIDI | notes, live; can wait for them | course progress | self-report quiz, then learner picks | ✗ | ✗ |
| Skoove 5 | piano | mic, MIDI | notes, live | course history | questionnaire picks a first lesson | ✓ paid messages, live lessons | ✗ |
| Piano Marvel 6 | piano | MIDI; mic in beta | notes, how early or late | scores, minutes, sight-reading level | sight-reading test picks excerpts by score | ✓ sees scores, minutes | ✗ |
| Yousician 7 | guitar, bass, piano, ukulele, voice | mic, MIDI | notes, chords per string, timing | stars, best scores, streaks | unlocked path, learner picks | ✗ | ✗ |
| Rocksmith+ 89 | guitar, bass, piano | cable, mic, MIDI | notes, chords, techniques | level per technique | song gets harder after runs of hits | ✗ | ✗ |
| Melodics 10 | pads, keys, drums | MIDI; mic for drums | timing of each hit | scores, XP, Stages | Stage gates, weekly goals | ✗ | ✗ |
| Fender Play 111213 | guitar, bass, ukulele | mic | pitch, rhythm, after the take | path progress; take scores not kept | fixed path | ✓ paid, separate service | ✗ |
| SmartMusic 14 | band, orchestra, voice | mic, MIDI | pitch, onset, duration; teacher sets tolerance and live marks | graded takes, practice minutes | teacher assigns | ✓ gradebook, rubric | ✗ |
| Trala 15 | violin | mic | pitch, rhythm, live | progress | fixed curriculum | ✗ since 2025 | ✗ |
| tonestro 16 | winds, brass, strings, piano | mic | pitch, rhythm, live; repeats until clean | points, exams, streaks | “Smart Practice”, method not documented | ✗ | ✗ |
| Metronaut 17 | 20+ instruments, voice | mic, MIDI | pitch, timing; accompaniment follows tempo | recordings, practice time | learner or teacher picks | ✓ playlists, annotations | ✗ |
| 一起练琴 18 | piano, violin and nine other instruments | mic | pitch, rhythm, live; score follows the player | each session’s piece, time, wrong-note positions, score | teacher assigns weekly pieces | ✓ sees every session remotely | ✗ |
| 小叶子钢琴 19 | piano | mic | notes, rhythm, live; waits on errors, hint after 5 s | scores, practice reports, weak passages | fixed course path, flagged passages | ✗ | ✗ |
| 易古筝智能陪练 20 | guzheng | mic | pitch, fingering, rhythm; stops on a wrong note | practice time, pieces, scores | class homework; learner picks sections | ✓ report sent to teacher and parents | ✗ |
| DeepPiano 21 | piano | mic | notes, live, score follows the player; after the take pitch, rhythm, dynamics, expressiveness | not documented | learner picks | ✗ | own music model, no chat found |
| Modacity 22 | any | recorder | ✗ by design | journal, recordings, self-ratings | learner’s own lists | ✗ | ✗ |
| June by Yousician 2324 | guitar | mic | inside the tools it opens | progress review claimed | proposes next drill or song | ✗ | ✓ chat that opens tuner, chord trainer, songs |
| ROLI AI Music Coach 2526 | piano | ROLI keyboard, infrared hand camera | notes, timing, fingering, live | learning claimed, not documented | suggests what to practise, paces songs | ✗ | ✓ voice, 40 languages |
| Artie 27 | piano | mic, MIDI | rhythm, accuracy, live tips | plan, weekly streak | personalised plan | ✗ | ✓ tips and chat |
| Singing Carrots 2829 | voice | mic | pitch, live | goals and voice notes the singer can edit | LLM plans each session | ✓ lesson transcripts feed the coach | ✓ text chat |
| Clefer 3031 | piano | mic | notes, rhythm, live | recordings, practice per piece | teacher assigns; coach suggests what to try next | ✓ sees practice habits, weak passages | ✓ text chat |
| 全民K歌 (WeSing) 32 | voice | mic | pitch, rhythm, emotion | recorded works | learner picks songs | ✗ | ✓ written critique posted under each recording |
| MUSICLE 33 | piano | lesson recordings, iPad at home | not documented | points the teacher flagged in each lesson | plan for each session from lessons and progress | ✓ teacher app shows practice frequency, results | ✓ voice companion modelled on the teacher |
Among these apps, most doesn’t follows the player’s tempo, while only wait for the right note or play at a set tempo. In a study with 34 wind and brass students, SmartMusic kept penalising notes after a late entrance or a small tempo drift, and adding it to a panel of four band directors lowered the panel’s dependability from .95 to .67 Shih (2018). Simply and Yousician patented choosing the next exercise from a stored skill level or from recurring errors Aharonson et al. (2023)Aharonson et al. (2024)Klapuri et al. (2017), but their help centres describe only fixed or learner-chosen paths. Chinese apps such as 一起练琴 and 易古筝 are built around the offline teacher’s weekly homework: each session’s piece, duration, wrong-note positions and score go to the teacher and parents Shenzhen Mango Future Technology (2026)Beijing Yizhiyanxi Cultural Communication (2026). DeepPiano is the only app here that scores dynamics and expressiveness, using a music model it trained itself Beijing Zhiqu Technology (2026).
In the apps with a language model, conventional recognition still does the listening, and the model chooses which tool to open and what to say. June calls a tuner, a chord trainer or a song player, and a separate prompt writes the feedback on each take Yadav (2026). ROLI’s coach slows or loops a passage when asked and tracks finger placement from the camera Hassan (2026). Singing Carrots documents its memory: up to 30 goals and notes about the singer’s voice, which the singer can edit, and transcripts of lessons with the singer’s human teacher Singing Carrots (2026)Singing Carrots (2026). MUSICLE, a Honda spin-off, goes further on the teacher side: it learns from each teacher’s recorded lessons, replays the points the teacher flagged, plans each practice session and talks to the student in a voice modelled on the teacher MUSICLE (2025). 全民K歌 posts an LLM-written critique of a recording’s pitch, rhythm and emotion as a comment from an official assistant GeekPark (2023). Few of them names its model, and we found no published evaluation of whether learners improve.
The subsections take the three ingredients in turn: tools, memory, and pedagogy as the policy over both.
- Chu, Z., Wang, S., Xie, J., Zhu, T., Yan, Y., Ye, J., Zhong, A., Hu, X., Liang, J., Yu, P. S., & Wen, Q. (2025). LLM Agents for Education: Advances and Applications. Findings of the Association for Computational Linguistics: EMNLP 2025, 13782–13810. 10.18653/v1/2025.findings-emnlp.743
- Simply. (2026). Learning with Simply Piano: The Basics. https://piano-help.hellosimply.com/en/articles/7943490-learning-with-simply-piano-the-basics
- flowkey. (2026). flowkey: Learn to Play Piano. https://apps.apple.com/us/app/flowkey-learn-to-play-piano/id1020357408
- flowkey. (2026). flowkey Web App Onboarding. https://app.flowkey.com/onboarding
- Skoove. (2026). Getting Started: The Onboarding Questionnaire. https://help.skoove.com/en/articles/16668705-getting-started-the-onboarding-questionnaire
- Piano Marvel. (2026). Standard Assessment of Sight-Reading (SASR). https://pianomarvel.com/en/feature/sasr
- Yousician. (2026). Practice and Play Modes in Guitar. https://support.yousician.com/hc/en-us/articles/201558362-Practice-and-Play-modes-in-guitar
- Ubisoft. (2026). Changing Difficulty Settings in Rocksmith+. https://www.ubisoft.com/en-ca/help/rocksmith-plus/gameplay/article/changing-difficulty-settings-in-rocksmith/000097526
- Ubisoft. (2022). Rocksmith+ Dev Diary, Late March 2022: Skill Profiles. https://www.ubisoft.com/en-us/game/rocksmith/plus/news-updates/3S8q6DNIp3JdcjedymA6xp/rocksmith-dev-diary-late-march-2022-skill-profiles
- Melodics. (2026). Stages. https://support.melodics.com/en/articles/15091931-stages
- Fender. (2026). Feedback Mode. https://play-instructor.fender.com/hc/en-us/articles/12795419880461-Feedback-Mode
- Fender. (2026). What is Feedback Mode? https://play-support.fender.com/hc/en-us/articles/44538998312603-What-is-Feedback-Mode
- Music Connection. (2024). Fender Introduces Fender Play 1:1. https://www.musicconnection.com/fender-introduces-fender-play-11/
- MakeMusic. (2026). Creating an Assignment: Performance Assessment. https://help.makemusic.com/hc/en-us/articles/360026371253-Creating-an-Assignment-Performance-Assessment
- Learnfield. (2026). Trala: Learn Violin. https://apps.apple.com/us/app/trala-learn-violin/id1143205265