======================== unified (from filesystem) ========================
                                         'bitrate'  '187.445'
                                        'duration'  '61'
                                          'artist'  'Emilie Autumn'
                                     'text_people'  ''
                                         'release'  'Opheliac'
                                           'title'  'Poem: How to break a heart'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-4', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dark ambient', 'instrumental', 'music box', 'female vocalists', 'darkwave']"
                                     'discogstags'  "['electronic', 'classical', 'electro', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '124.392'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Opheliac'
'TBPM' (BPM (beats per minute))                     '124.392'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Poem: How to break a heart'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Emilie Autumn'
'TRCK' (Track number/Position in set)               '18'
'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'                                  ['electronic', 'classical', 'electro', 'classical']
'TXXX:lastfmtags'                                   ['dark ambient', 'instrumental', 'music box', 'female vocalists', 'darkwave']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.76 dB'
'TXXX:replaygain_track_peak'                        '0.921299'

========================== row from database ==========================
                                              'id'  937615
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Emilie Autumn/Opheliac, Ltd. Deluxe Edition-2006/18 - Poem_ How to break a heart.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  61
                                           'genre'  ifs-songwriter
                                        'filesize'  1454206
                                           'mtime'  1636401740
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Opheliac, Ltd. Deluxe Edition 2006 18 Poem_ ifs songwriter
                                      'tag_artist'  Emilie Autumn
                                     'tag_release'  Opheliac
                                       'tag_title'  Poem: How to break a heart
                                             'bpm'  124.392
                                    'search_title'  'a':6 'break':5 'heart':7 'how':3 'poem':1,2 'to':4
                                   'search_artist'  'autumn':2 'emilie':1
                                  'search_release'  'opheliac':1
                                     'search_rest'  '00singer':1 '18':11 '2006':10 'deluxe':8 'edition':9 'eos':3 'ifs':13 'ltd':6,7 'opheliac':4,5 'poem':12 'songwriter':2
                                    'search_combo'  '00singer':11 '18':21 '2006':20 'a':6A 'autumn':9B 'break':5A 'deluxe':18 'edition':19 'emilie':8B 'eos':13 'heart':7A 'how':3A 'ifs':23 'ltd':16,17 'opheliac':10C,14,15 'poem':1A,2A,22 'songwriter':12 'to':4A
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'instrumental', 'music box', 'female vocalists', 'darkwave']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic', 'classical', 'electro', 'classical']

============================== file details ==============================
                                           'mtime'  1636401739.7223415  (2021-11-08 21:02:19)
                             'size'  1454206