======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '238'
                                          'artist'  'Thrice'
                                     'text_people'  ''
                                         'release'  'First Impressions'
                                           'title'  'T & C'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '7'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '99.371'
                                             'key'  '12A'
                                        'acoustid'  '58fdb9e6-22b4-470d-9001-e22255f1fe62'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'First Impressions'
'TBPM' (BPM (beats per minute))                     '99.371'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'T & C'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Thrice'
'TPE2' (Band/orchestra/accompaniment)               'Thrice'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/7'
'TSO2'                                              'Thrice'
'TSOP' (Performer sort order)                       'Thrice'
'TXXX:Acoustid Id'                                  '58fdb9e6-22b4-470d-9001-e22255f1fe62'
'TXXX:MusicBrainz Album Artist Id'                  '244afcb7-fa9a-49b1-9aa6-0149512d1c52'
'TXXX:MusicBrainz Album Id'                         '6595d8fd-939b-4794-bbce-816feeefd59d'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'ep'
'TXXX:MusicBrainz Artist Id'                        '244afcb7-fa9a-49b1-9aa6-0149512d1c52'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.62 dB'
'TXXX:replaygain_track_peak'                        '0.536707'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6249cea6-3042-44c6-8b66-a190c44c2981')

========================== row from database ==========================
                                              'id'  1348579
                                            'path'  /data/Music/Bulk/00poprockelectronic/Thrice/First impression/thrice -04- t&r.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  238
                                           'genre'  rock-gr-punk
                                        'filesize'  3813299
                                           'mtime'  1622659317
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic impression thrice 04 t&r rock gr punk
                                      'tag_artist'  Thrice
                                     'tag_release'  First Impressions
                                       'tag_title'  T & C
                                             'bpm'  99.371
                                    'search_title'  'c':2 't':1
                                   'search_artist'  'thrice':1
                                  'search_release'  'first':1 'impressions':2
                                     'search_rest'  '00poprockelectronic':1 'gr':8 'impression':2 'punk':9 'r':5 'rock':7 't':4 'thrice':3 'tr':6
                                    'search_combo'  '00poprockelectronic':6 'c':2A 'first':4C 'gr':13 'impression':7 'impressions':5C 'punk':14 'r':10 'rock':12 't':1A,9 'thrice':3B,8 'tr':11
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']
                                        'tag_date'  1999
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622659317.1762655  (2021-06-02 20:41:57)
                             'size'  3813299