======================== unified (from filesystem) ========================
                                         'bitrate'  '198.469'
                                        'duration'  '270'
                                          'artist'  'Jason Mraz'
                                     'text_people'  ''
                                         'release'  'Tonight Not Again/Live at Eagl'
                                           'title'  'No Doubling Back'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
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 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
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                                      'lastfmtags'  "['acoustic', 'alternative', 'rock', 'pop', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '115.920'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Tonight Not Again/Live at Eagl'
'TBPM' (BPM (beats per minute))                     '115.920'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'No Doubling Back'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jason Mraz'
'TRCK' (Track number/Position in set)               '4'
'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:lastfmtags'                                   ['acoustic', 'alternative', 'rock', 'pop', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.11 dB'
'TXXX:replaygain_track_peak'                        '0.366479'

========================== row from database ==========================
                                              'id'  205431
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Jason Mraz/Jason Mraz - Tonight,_Not_Again/04-No_Doubling_Back.mp3
                                         'working'  None
                                         'bitrate'  198
                                    'duration_sec'  270
                                           'genre'  ifs-songwriter
                                        'filesize'  6709668
                                           'mtime'  1637249144
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Tonight,_Not_Again 04 No_Doubling_Back ifs songwriter
                                      'tag_artist'  Jason Mraz
                                     'tag_release'  Tonight Not Again/Live at Eagl
                                       'tag_title'  No Doubling Back
                                             'bpm'  115.92
                                    'search_title'  'back':3 'doubling':2 'no':1
                                   'search_artist'  'jason':1 'mraz':2
                                  'search_release'  'again':3 'againlive':5 'at':6 'eagl':7 'live':4 'not':2 'tonight':1
                                     'search_rest'  '00singer':1 'again':6,9 'back':12 'doubling':11 'eos':3 'ifs':13 'no':10 'not':5,8 'songwriter':2 'tonight':4,7
                                    'search_combo'  '00singer':13 'again':8C,18,21 'againlive':10C 'at':11C 'back':3A,24 'doubling':2A,23 'eagl':12C 'eos':15 'ifs':25 'jason':4B 'live':9C 'mraz':5B 'no':1A,22 'not':7C,17,20 'songwriter':14 'tonight':6C,16,19
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  11B
                                           '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-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['acoustic', 'alternative', 'rock', 'pop', 'singer songwriter']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637249143.730299  (2021-11-18 16:25:43)
                             'size'  6709668