======================== unified (from filesystem) ========================
                                         'bitrate'  '111.923'
                                        'duration'  '45'
                                          'artist'  'Freddie Phillips'
                                     'text_people'  ''
                                         'release'  'Dimitri - Folk, Rock, Pop & Instruments'
                                           'title'  "Mr. Farthing's Song (The Potter)"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['1960s', 'tv', 'bbc']"
                                     'discogstags'  "['stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '125.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Dimitri - Folk, Rock, Pop & Instruments'
'TBPM' (BPM (beats per minute))                     '125.5'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         "Mr. Farthing's Song (The Potter)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Freddie Phillips'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'stage & screen'
'TXXX:lastfmtags'                                   ['1960s', 'tv', 'bbc']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.483069'
'TXXX:youtube'                                      'wzOX8KYZbbw'

========================== row from database ==========================
                                              'id'  1508112
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/FolkRockPopInstrumentals/Freddie Phillips - Mr. Farthing_s Song (The Potter)-wzOX8KYZbbw.mp3
                                         'working'  None
                                         'bitrate'  111
                                    'duration_sec'  45
                                           'genre'  ifs-songwriter
                                        'filesize'  633151
                                           'mtime'  1637329483
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm FolkRockPopInstrumentals Farthing_s wzOX8KYZbbw ifs songwriter
                                      'tag_artist'  Freddie Phillips
                                     'tag_release'  Dimitri - Folk, Rock, Pop & Instruments
                                       'tag_title'  Mr. Farthing's Song (The Potter)
                                             'bpm'  125.5
                                    'search_title'  'farthing':3 'farthings':5 'mr':1,2 'potter':9,10 's':4 'song':6 'the':7,8
                                   'search_artist'  'freddie':1 'phillips':2
                                  'search_release'  'dimitri':1 'folk':2,3 'instruments':7 'pop':6 'rock':4,5
                                     'search_rest'  'farthing':2 'folk':7 'folkrockpopinstrumentals':1 'ifs':5 'instrumentals':10 'ox8kyzbbw':12 'pop':9 'rock':8 's':3 'songwriter':6 'wz':11 'wzox8kyzbbw':4
                                    'search_combo'  'dimitri':13C 'farthing':3A,21 'farthings':5A 'folk':14C,15C,26 'folkrockpopinstrumentals':20 'freddie':11B 'ifs':24 'instrumentals':29 'instruments':19C 'mr':1A,2A 'ox8kyzbbw':31 'phillips':12B 'pop':18C,28 'potter':9A,10A 'rock':16C,17C,27 's':4A,22 'song':6A 'songwriter':25 'the':7A,8A 'wz':30 'wzox8kyzbbw':23
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-2', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  ['1960s', 'tv', 'bbc']
                                        'tag_date'  
                                     'discogstags'  ['stage & screen']

============================== file details ==============================
                                           'mtime'  1637329483.1770346  (2021-11-19 14:44:43)
                             'size'  633151