======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '209'
                                          'artist'  'Gomez'
                                     'text_people'  'Ball/Blackburn/Gray/Ottewell/Peacock'
                                         'release'  'Bring It On'
                                           'title'  'Love Is Better Than A Warm Trombone'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'british', 'indie rock', 'rock']"
                                     'discogstags'  "['rock', 'brit pop', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '145.790'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000AD6 0000024A 00005C44'
'COMM:iTunNORM:eng'                                 (' 00000AD6 0000024A 00005C44 00002220 000185E5 0001E80F 000085ED 0000872B '
 '0001CDBC 0000F068')
'COMM:iTunes_CDDB_IDs:eng'                          '12+6596BB676A918D94F55515D0AFBB973B+906461'
'TALB' (Album/Movie/Show title)                     'Bring It On'
'TBPM' (BPM (beats per minute))                     '145.790'
'TCOM' (Composer)                                   'Ball/Blackburn/Gray/Ottewell/Peacock'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '1998'
'TENC' (Encoded by)                                 'iTunes v4.5.0.31'
'TIT2' (Title/songname/content description)         'Love Is Better Than A Warm Trombone'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gomez'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/12'
'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'                                  ['rock', 'brit pop', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'british', 'indie rock', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.40 dB'
'TXXX:replaygain_track_peak'                        '0.631814'

========================== row from database ==========================
                                              'id'  1367889
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Gomez - Bring It On/07 Love Is Better Than A Warm Trombo.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  209
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4194393
                                           'mtime'  1621697233
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 07 ifs songwriter indie rock
                                      'tag_artist'  Gomez
                                     'tag_release'  Bring It On
                                       'tag_title'  Love Is Better Than A Warm Trombone
                                             'bpm'  145.79
                                    'search_title'  'a':5 'better':3 'is':2 'love':1 'than':4 'trombone':7 'warm':6
                                   'search_artist'  'gomez':1
                                  'search_release'  'bring':1 'it':2 'on':3
                                     'search_rest'  '00poprockelectronic':1 'ifs':4 'indie':6 'indierock':3 'poprock':2 'rock':7 'songwriter':5
                                    'search_combo'  '00poprockelectronic':12 'a':5A 'better':3A 'bring':9C 'gomez':8B 'ifs':15 'indie':17 'indierock':14 'is':2A 'it':10C 'love':1A 'on':11C 'poprock':13 'rock':18 'songwriter':16 'than':4A 'trombone':7A 'warm':6A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'british', 'indie rock', 'rock']
                                        'tag_date'  1998
                                     'discogstags'  ['rock', 'brit pop', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697233.1557124  (2021-05-22 17:27:13)
                             'size'  4194393