======================== unified (from filesystem) ========================
                                         'bitrate'  '206.329'
                                        'duration'  '147'
                                          'artist'  'Nellie McKay'
                                     'text_people'  ''
                                         'release'  'Pretty Little Head (Disc 2)'
                                           'title'  'Happy Flower'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['indie', 'piano', 'jazz', 'female vocalists', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-pop'
                                             'bpm'  '144.335'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pretty Little Head (Disc 2)'
'TBPM' (BPM (beats per minute))                     '144.335'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-pop'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'Happy Flower'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nellie McKay'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'piano', 'jazz', 'female vocalists', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.58 dB'
'TXXX:replaygain_track_peak'                        '0.499963'

========================== row from database ==========================
                                              'id'  1331506
                                            'path'  /data/Music/Bulk/00poprockelectronic/Nellie McKay/Pretty Little Head (Disc 2)/08 Happy Flower.mp3
                                         'working'  None
                                         'bitrate'  206
                                    'duration_sec'  147
                                           'genre'  ifs-songwriter-pop
                                        'filesize'  3809280
                                           'mtime'  1642097678
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 08 ifs songwriter pop
                                      'tag_artist'  Nellie McKay
                                     'tag_release'  Pretty Little Head (Disc 2)
                                       'tag_title'  Happy Flower
                                             'bpm'  144.335
                                    'search_title'  'flower':2 'happy':1
                                   'search_artist'  'kay':4 'mc':3 'mckay':2 'nellie':1
                                  'search_release'  '2':6,7 'disc':4,5 'head':3 'little':2 'pretty':1
                                     'search_rest'  '00poprockelectronic':1 'ifs':2 'pop':4 'songwriter':3
                                    'search_combo'  '00poprockelectronic':14 '2':12C,13C 'disc':10C,11C 'flower':2A 'happy':1A 'head':9C 'ifs':15 'kay':6B 'little':8C 'mc':5B 'mckay':4B 'nellie':3B 'pop':17 'pretty':7C 'songwriter':16
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', 'q-mixbeat-1', 'Q-PIANO-3']
                                      'lastfmtags'  ['indie', 'piano', 'jazz', 'female vocalists', 'singer songwriter']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642097678.4599407  (2022-01-13 19:14:38)
                             'size'  3809280