======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '194'
                                          'artist'  "Let's Go Sailing"
                                     'text_people'  ''
                                         'release'  'The Chaos in Order'
                                           'title'  "It's As Clear"
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'mellow', 'female vocalists', 'pop']"
                                     'discogstags'  "['indie rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '88.207'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Chaos in Order'
'TBPM' (BPM (beats per minute))                     '88.207'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         "It's As Clear"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               "Let's Go Sailing"
'TRCK' (Track number/Position in set)               '4'
'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'                                  ['indie rock', 'rock']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'mellow', 'female vocalists', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.69 dB'
'TXXX:replaygain_track_peak'                        '0.436158'

========================== row from database ==========================
                                              'id'  1531811
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Let_s Go Sailing/04-It_s As Clear.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  194
                                           'genre'  ifs-songwriter
                                        'filesize'  4666612
                                           'mtime'  1637330802
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Let_s 04 It_s ifs songwriter
                                      'tag_artist'  Let's Go Sailing
                                     'tag_release'  The Chaos in Order
                                       'tag_title'  It's As Clear
                                             'bpm'  88.207
                                    'search_title'  'as':4 'clear':5 'it':1 'its':3 's':2
                                   'search_artist'  'go':4 'let':1 'lets':3 's':2 'sailing':5
                                  'search_release'  'chaos':2 'in':3 'order':4 'the':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':8 'it':6 'let':4 's':5,7 'songwriter':2
                                    'search_combo'  '00singer':15 'as':4A 'chaos':12C 'clear':5A 'eos':17 'go':9B 'ifs':22 'in':13C 'it':1A,20 'its':3A 'let':6B,18 'lets':8B 'order':14C 's':2A,7B,19,21 'sailing':10B 'songwriter':16 'the':11C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'mellow', 'female vocalists', 'pop']
                                        'tag_date'  2007
                                     'discogstags'  ['indie rock', 'rock']

============================== file details ==============================
                                           'mtime'  1637330801.519226  (2021-11-19 15:06:41)
                             'size'  4666612