======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '387'
                                          'artist'  'Smog'
                                     'text_people'  ''
                                         'release'  'Red Apple Falls'
                                           'title'  'Inspirational'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'lo fi', 'alt country', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie;ifs-songwriter-folk'
                                             'bpm'  '86.438'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Red Apple Falls'
'TBPM' (BPM (beats per minute))                     '86.438'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-indie', 'ifs-songwriter-folk']
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Inspirational'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Smog'
'TPUB' (Publisher)                                  'Domino'
'TRCK' (Track number/Position in set)               '8'
'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'                                  ['rock', 'folk rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'lo fi', 'alt country', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.69 dB'
'TXXX:replaygain_track_peak'                        '0.483011'

========================== row from database ==========================
                                              'id'  1275796
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Smog/Red Apple Falls/08 inspirational.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  387
                                           'genre'  ifs-songwriter-indie;ifs-songwriter-folk
                                        'filesize'  6207360
                                           'mtime'  1637330513
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 08 inspirational ifs songwriter indie;ifs songwriter folk
                                      'tag_artist'  Smog
                                     'tag_release'  Red Apple Falls
                                       'tag_title'  Inspirational
                                             'bpm'  86.438
                                    'search_title'  'inspirational':1
                                   'search_artist'  'smog':1
                                  'search_release'  'apple':2 'falls':3 'red':1
                                     'search_rest'  '00singer':1 'eos':3 'folk':10 'ifs':5,7,9 'indie':6,8 'inspirational':4 'songwriter':2
                                    'search_combo'  '00singer':6 'apple':4C 'eos':8 'falls':5C 'folk':15 'ifs':10,12,14 'indie':11,13 'inspirational':1A,9 'red':3C 'smog':2B 'songwriter':7
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'lo fi', 'alt country', 'folk', 'singer songwriter']
                                        'tag_date'  1997
                                     'discogstags'  ['rock', 'folk rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1637330513.486335  (2021-11-19 15:01:53)
                             'size'  6207360