======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '305'
                                          'artist'  'Radical Face'
                                     'text_people'  ''
                                         'release'  'Ghost'
                                           'title'  'Let the River In'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-vocals-2', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['indie', 'indie pop', 'electronic', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '95.035'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ghost'
'TBPM' (BPM (beats per minute))                     '95.035'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Let the River In'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Radical Face'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock', 'pop rock']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'electronic', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.21 dB'
'TXXX:replaygain_track_peak'                        '0.433806'

========================== row from database ==========================
                                              'id'  1249942
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Radical Face/Ghost/03 let the river in.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  305
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  12210058
                                           'mtime'  1638554664
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 03 let river in ifs songwriter indie unsorted
                                      'tag_artist'  Radical Face
                                     'tag_release'  Ghost
                                       'tag_title'  Let the River In
                                             'bpm'  95.035
                                    'search_title'  'in':4 'let':1 'river':3 'the':2
                                   'search_artist'  'face':2 'radical':1
                                  'search_release'  'ghost':1
                                     'search_rest'  '00singer':1 'eos':3 'ifs':7 'in':6 'indie':8 'let':4 'river':5 'songwriter':2 'unsorted':9
                                    'search_combo'  '00singer':8 'eos':10 'face':6B 'ghost':7C 'ifs':14 'in':4A,13 'indie':15 'let':1A,11 'radical':5B 'river':3A,12 'songwriter':9 'the':2A 'unsorted':16
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'electronic', 'folk', 'singer songwriter']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'folk rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1638554663.758851  (2021-12-03 19:04:23)
                             'size'  12210058