Preparation and importing
Check metadata in 调调: filename, title and artwork have different sources
Build a field-by-field comparison for one owned track instead of relying on names or artwork.
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Build a field-by-field comparison for one owned track instead of relying on names or artwork.
1. Separate file identity from track information
Choose an imported owned track that plays correctly. Record its original filename and provider separately from the title, artist, album and artwork shown by the player. Those fields need not match the filename word for word: the filename locates the file, while metadata describes the music. A formal displayed title does not prove the original was renamed, and matching artwork does not merge different recordings. If playback has not been established, complete importing and audio verification first, so an unreadable file is not mistaken for a metadata-display problem.
2. Build a five-field reference
In an external note, retain the filename and only the original title, artist, album and embedded-artwork information you can actually inspect. If you lack a tag-reading tool, mark the field unchecked; a folder name does not prove that value is embedded in the audio. An optional self-prepared sample can use a practice number in its filename and a different short title to expose the distinction. This is a preparation example, not supplied audio. Tags you have neither created nor inspected must not be recorded as existing measured values.
3. Identify the correct library item
Return to the library and identify the track using title, artist and opening sound together. Add duration or edition clues for same-name recordings instead of relying on row order. Record library-list and player displays separately: a list that omits album information does not prove that the file lacks an album tag. Leave undisplayed fields blank and use the controls actually available. Do not assume that an unpublished batch tag editor or automatic recognition button exists merely to complete the comparison.
4. Check what supplies the artwork
The public description includes reading available embedded artwork. If you verified artwork in the original, compare its colours, subject and composition. If the original supplies none, record what 调调 actually displays without calling a default image a downloaded album photo. Image provenance needs evidence; seeing an image does not prove an online fetch. Different files can share a cover, while copies of the same music can contain different images. Resolution, cropping and display size affect appearance, so screen dimensions alone do not establish the source image’s pixels.
5. Treat duplicate-content handling separately
调调 skips duplicate-content files, so selecting the same audio again without a second new entry is not automatically a fault. Record this selection, actual feedback and the existing library item, then check whether the original content is already accessible. Do not infer an internal hash or comparison algorithm from the public description. Nor is a tag-only change guaranteed either to add an item or to be skipped. Renaming many copies is unnecessary for field checking; one identifiable original and a clear external record better explain what you found.
6. Return to the source for missing information
If artist or album is blank, first establish whether the original supplies that tag and whether this view presents it. If sound and information disagree, verify the edition first. You may optionally edit an authorised external copy, preserving the original and recording the editing tool and changes. Do not describe that external preparation as automatic work by 调调. Reimporting can encounter duplicate handling; a new filename does not prove the edited tags were adopted. You can finish this task without an editor by delivering verified fields and missing items instead of invented song information.
7. Diagnose display, tags and content separately
For a field omitted from the list, compare a visible detail or player view before declaring corruption. If several fields disagree, replay the audible anchor to check identity. For artwork-only differences, inspect embedded content and cropping separately. Change one layer per round and preserve earlier observations. Renaming, replacing artwork and re-encoding together cannot establish a single cause. A field comparison and nonprivate illustration can support a help request without sending a complete collection. Retain version, provenance and actual display alongside the problem description.
8. Reopen and deliver fields with unknowns
Leave the player and reopen the same item. Check that title, sound and visible artwork still correspond, then save the original fields and both view results. Acceptance includes explaining filename versus song title, and distinguishing missing tags, a view’s omission and the wrong file. Unknown is not the same as definitely absent. Recheck changed sources or new audio editions. One matching cover does not verify every future tag; the result is a traceable comparison for this particular track.
Related tutorials and sources
Checked on November 15, 2026 against Apple public lookup and the official App Store information and screenshots it lists: version 1.0, requiring iOS / iPadOS 17.6 or later, with identity and version cross-checked against China lookup. Tasks use published capabilities; identify actual controls in your installed version. External records are acceptable. Keep expectations separate from observations; no physical-device, private-server or universal input-environment test is claimed.
