======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '227'
                                          'artist'  'Kings of Convenience'
                                     'text_people'  ''
                                         'release'  'Riot on an Empty Street'
                                           'title'  'Sorry or Please'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'mellow', 'folk', 'pop']"
                                     'discogstags'  "['progressive house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '145.580'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Riot on an Empty Street'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Sorry or Please'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kings of Convenience'
'TPUB' (Publisher)                                  'Astralwerks'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['progressive house', 'electronic']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'mellow', 'folk', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.08 dB'
'TXXX:replaygain_track_peak'                        '0.373517'

========================== row from database ==========================
                                              'id'  1322723
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kings of Convenience/Riot On An Empty Street/06-kings_of_convenience-sorry_or_please.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  227
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  7341754
                                           'mtime'  1621697431
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic On An 06 kings_of_convenience sorry_or_please ifs songwriter indie rock
                                      'tag_artist'  Kings of Convenience
                                     'tag_release'  Riot on an Empty Street
                                       'tag_title'  Sorry or Please
                                             'bpm'  145.58
                                    'search_title'  'or':2 'please':3 'sorry':1
                                   'search_artist'  'convenience':3 'kings':1 'of':2
                                  'search_release'  'an':3 'empty':4 'on':2 'riot':1 'street':5
                                     'search_rest'  '00poprockelectronic':1 'an':3 'convenience':6 'ifs':10 'indie':12 'kings':4 'of':5 'on':2 'or':8 'please':9 'rock':13 'songwriter':11 'sorry':7
                                    'search_combo'  '00poprockelectronic':12 'an':9C,14 'convenience':6B,17 'empty':10C 'ifs':21 'indie':23 'kings':4B,15 'of':5B,16 'on':8C,13 'or':2A,19 'please':3A,20 'riot':7C 'rock':24 'songwriter':22 'sorry':1A,18 'street':11C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'mellow', 'folk', 'pop']
                                        'tag_date'  2004
                                     'discogstags'  ['progressive house', 'electronic']

============================== file details ==============================
                                           'mtime'  1621697430.886238  (2021-05-22 17:30:30)
                             'size'  7341754