======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '220'
                                          'artist'  'Arab Strap'
                                     'text_people'  ''
                                         'release'  'Mad For Sadness'
                                           'title'  'Packs Of Three'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'slowcore', 'post rock', 'indie rock', 'scottish']"
                                     'discogstags'  "['electronic', 'rock', 'lo-fi', 'downtempo', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '135.274'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mad For Sadness'
'TBPM' (BPM (beats per minute))                     '135.274'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Packs Of Three'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Arab Strap'
'TRCK' (Track number/Position in set)               '2'
'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', 'rock', 'lo-fi', 'downtempo', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'slowcore', 'post rock', 'indie rock', 'scottish']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.93 dB'
'TXXX:replaygain_track_peak'                        '0.963120'

========================== row from database ==========================
                                              'id'  1251607
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Arab Strap/Mad For Sadness/arab strap - mad for sadness - 02 - packs of three.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  220
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  5302383
                                           'mtime'  1638554788
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos arab strap mad for sadness 02 packs of three ifs songwriter indie unsorted
                                      'tag_artist'  Arab Strap
                                     'tag_release'  Mad For Sadness
                                       'tag_title'  Packs Of Three
                                             'bpm'  135.274
                                    'search_title'  'of':2 'packs':1 'three':3
                                   'search_artist'  'arab':1 'strap':2
                                  'search_release'  'for':2 'mad':1 'sadness':3
                                     'search_rest'  '00singer':1 'arab':4 'eos':3 'for':7 'ifs':12 'indie':13 'mad':6 'of':10 'packs':9 'sadness':8 'songwriter':2 'strap':5 'three':11 'unsorted':14
                                    'search_combo'  '00singer':9 'arab':4B,12 'eos':11 'for':7C,15 'ifs':20 'indie':21 'mad':6C,14 'of':2A,18 'packs':1A,17 'sadness':8C,16 'songwriter':10 'strap':5B,13 'three':3A,19 'unsorted':22
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'slowcore', 'post rock', 'indie rock', 'scottish']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic', 'rock', 'lo-fi', 'downtempo', 'indie rock']

============================== file details ==============================
                                           'mtime'  1638554788.1175842  (2021-12-03 19:06:28)
                             'size'  5302383