======================== unified (from filesystem) ========================
                                         'bitrate'  '270.298'
                                        'duration'  '257'
                                          'artist'  'The Decemberists'
                                     'text_people'  ''
                                         'release'  'The King is Dead'
                                           'title'  "Don't Carry It All"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'indie folk', 'folk', 'indie rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '142.3'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The King is Dead'
'TBPM' (BPM (beats per minute))                     '142.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         "Don't Carry It All"
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '257093'
'TPE1' (Lead performer(s)/Soloist(s))               'The Decemberists'
'TRCK' (Track number/Position in set)               '01'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.4 (http://www.mp3dev.org/)'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'indie folk', 'folk', 'indie rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.34 dB'
'TXXX:replaygain_track_peak'                        '0.330087'

========================== row from database ==========================
                                              'id'  1503449
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Decemberists/2011 - the king is dead/01 - don_t carry it all.mp3
                                         'working'  None
                                         'bitrate'  270
                                    'duration_sec'  257
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  8690249
                                           'mtime'  1637330409
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2011 the king dead 01 don_t carry it all ifs songwriter indie rock
                                      'tag_artist'  The Decemberists
                                     'tag_release'  The King is Dead
                                       'tag_title'  Don't Carry It All
                                             'bpm'  142.3
                                    'search_title'  'all':6 'carry':4 'don':1 'dont':3 'it':5 't':2
                                   'search_artist'  'decemberists':2 'the':1
                                  'search_release'  'dead':4 'is':3 'king':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 '2011':2 'all':10 'carry':8 'dead':5 'don':6 'ifs':11 'indie':13 'it':9 'king':4 'rock':14 'songwriter':12 't':7 'the':3
                                    'search_combo'  '00poprockelectronic':13 '2011':14 'all':6A,22 'carry':4A,20 'dead':12C,17 'decemberists':8B 'don':1A,18 'dont':3A 'ifs':23 'indie':25 'is':11C 'it':5A,21 'king':10C,16 'rock':26 'songwriter':24 't':2A,19 'the':7B,9C,15
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9B
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'indie folk', 'folk', 'indie rock']
                                        'tag_date'  2011
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1637330409.341985  (2021-11-19 15:00:09)
                             'size'  8690249