======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '140'
                                          'artist'  'R.E.M.'
                                     'text_people'  ''
                                         'release'  'Reckoning'
                                           'title'  'Moon River'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-4', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'indie', 'alternative', 'pop', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '15'
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '101.4'
                                             'key'  '8B'
                                        'acoustid'  'ad8a44bb-3101-402c-966e-ed9b49e7ab7c'
rest: ''

======================== rawer (from filesystem) ========================

'COMM:ID3v1 Comment:eng'                            'Berry - Buck - Mills - Stipe'
'TALB' (Album/Movie/Show title)                     'Reckoning'
'TBPM' (BPM (beats per minute))                     '101.4'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDOR' (Original release time)                      '1984'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'Moon River'
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'R.E.M.'
'TPE2' (Band/orchestra/accompaniment)               'R.E.M.'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'EMI'
'TRCK' (Track number/Position in set)               '15/15'
'TSO2'                                              'R.E.M.'
'TSOP' (Performer sort order)                       'R.E.M.'
'TXXX:ASIN'                                         'B000005RQC'
'TXXX:Acoustid Id'                                  'ad8a44bb-3101-402c-966e-ed9b49e7ab7c'
'TXXX:BARCODE'                                      '077771315923'
'TXXX:CATALOGNUMBER'                                '0777 7 13159 2 3'
'TXXX:MusicBrainz Album Artist Id'                  'ea4dfa26-f633-4da6-a52a-f49ea4897b58'
'TXXX:MusicBrainz Album Id'                         'de648d37-7c2d-3736-aa58-96c6063a2bc5'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ea4dfa26-f633-4da6-a52a-f49ea4897b58'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'indie rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'indie', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.823617'

========================== row from database ==========================
                                              'id'  1473287
                                            'path'  /data/Music/Bulk/00poprockelectronic/R.E.M/REM - Reckoning/15 - Moon River.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  140
                                           'genre'  rock-pop
                                        'filesize'  2253385
                                           'mtime'  1636917793
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic REM 15 rock pop
                                      'tag_artist'  R.E.M.
                                     'tag_release'  Reckoning
                                       'tag_title'  Moon River
                                             'bpm'  101.4
                                    'search_title'  'moon':1 'river':2
                                   'search_artist'  'e':2 'm':3 'r':1 'rem':4
                                  'search_release'  'reckoning':1
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rem':2 'rock':3
                                    'search_combo'  '00poprockelectronic':8 'e':4B 'm':5B 'moon':1A 'pop':11 'r':3B 'reckoning':7C 'rem':6B,9 'river':2A 'rock':10
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie', 'alternative', 'pop', 'rock']
                                        'tag_date'  1992
                                     'discogstags'  ['rock', 'alternative rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636917792.9155488  (2021-11-14 20:23:12)
                             'size'  2253385