======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '258'
                                          'artist'  'Aqua'
                                     'text_people'  ''
                                         'release'  'Aquarius'
                                           'title'  'We Belong to the Sea'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'eurodance', 'europop', 'pop', '90s']"
                                     'discogstags'  "['electronic', 'pop', 'euro house', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '16'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-europop'
                                             'bpm'  '85.2'
                                             'key'  '3B'
                                        'acoustid'  'd01d30cf-516f-4b63-8c26-4e1d66d20e92'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Aquarius'
'TBPM' (BPM (beats per minute))                     '85.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-europop'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'We Belong to the Sea'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Aqua'
'TPE2' (Band/orchestra/accompaniment)               'Aqua'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/16'
'TSO2'                                              'Aqua'
'TSOP' (Performer sort order)                       'Aqua'
'TSRC' (ISRC (international standard recording code))  'DKBKA0000104'
'TXXX:ASIN'                                         'B00004R84T'
'TXXX:Acoustid Id'                                  'd01d30cf-516f-4b63-8c26-4e1d66d20e92'
'TXXX:MusicBrainz Album Artist Id'                  'a1ed5e33-22ff-4e7d-a457-42f4309e135f'
'TXXX:MusicBrainz Album Id'                         'b8ebbba7-1dba-427c-b934-7b23d339ac89'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a1ed5e33-22ff-4e7d-a457-42f4309e135f'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'pop', 'euro house', 'ballad']
'TXXX:lastfmtags'                                   ['dance', 'eurodance', 'europop', 'pop', '90s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.601830'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ed4c365d-41c2-417a-86fb-9fdff653fdff')

========================== row from database ==========================
                                              'id'  1464717
                                            'path'  /data/Music/Bulk/00poprockelectronic/Aqua/[2000] Aquarius/04 We Belong To The Sea.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  258
                                           'genre'  electronic-th-ent-europop
                                        'filesize'  6309521
                                           'mtime'  1621642163
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2000] 04 To The electronic ent europop
                                      'tag_artist'  Aqua
                                     'tag_release'  Aquarius
                                       'tag_title'  We Belong to the Sea
                                             'bpm'  85.2
                                    'search_title'  'belong':2 'sea':5 'the':4 'to':3 'we':1
                                   'search_artist'  'aqua':1
                                  'search_release'  'aquarius':1
                                     'search_rest'  '00poprockelectronic':1 '2000':2,3 'electronic':6 'ent':7 'europop':8 'the':5 'to':4
                                    'search_combo'  '00poprockelectronic':8 '2000':9,10 'aqua':6B 'aquarius':7C 'belong':2A 'electronic':13 'ent':14 'europop':15 'sea':5A 'the':4A,12 'to':3A,11 'we':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-4', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'eurodance', 'europop', 'pop', '90s']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'pop', 'euro house', 'ballad']

============================== file details ==============================
                                           'mtime'  1621642162.632334  (2021-05-22 02:09:22)
                             'size'  6309521