======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '155'
                                          'artist'  'Rick Powell'
                                     'text_people'  ''
                                         'release'  'Switched-On-Country'
                                           'title'  'Green, Green Grass Of Home'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-4', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['grins and smiles and giggles and laughs', '1970s electronic', 'why be "
 "original']")
                                     'discogstags'  "['electronic', 'folk, world, & country', 'country', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'b2'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'mi-earlysynth-moog;set-pl-mor'
                                             'bpm'  '121.5'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Switched-On-Country'
'TBPM' (BPM (beats per minute))                     '121.5'
'TCON' (Content type, a.k.a. Genre)                 ['mi-earlysynth-moog', 'set-pl-mor']
'TDRC' (Recording time)                             '1970'
'TENC' (Encoded by)                                 'Basic Hip Digital Oddio'
'TIT2' (Title/songname/content description)         'Green, Green Grass Of Home'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Rick Powell'
'TRCK' (Track number/Position in set)               'b2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'folk, world, & country', 'country', 'experimental']
'TXXX:lastfmtags'                                   ['grins and smiles and giggles and laughs',
 '1970s electronic',
 'why be original']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.29 dB'
'TXXX:replaygain_track_peak'                        '0.971281'

========================== row from database ==========================
                                              'id'  420400
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Rick Powell - Switched-On-Country/b2 Green, Green Grass Of Home.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  155
                                           'genre'  mi-earlysynth-moog;set-pl-mor
                                        'filesize'  6228634
                                           'mtime'  1628353441
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm b2 mi earlysynth moog;set pl mor
                                      'tag_artist'  Rick Powell
                                     'tag_release'  Switched-On-Country
                                       'tag_title'  Green, Green Grass Of Home
                                             'bpm'  121.5
                                    'search_title'  'grass':3 'green':1,2 'home':5 'of':4
                                   'search_artist'  'powell':2 'rick':1
                                  'search_release'  'country':3 'on':2 'switched':1 'switchedoncountry':4
                                     'search_rest'  'b2':1 'earlysynth':3 'mi':2 'moog':4,6 'mor':9 'pl':8 'set':5,7
                                    'search_combo'  'b2':12 'country':10C 'earlysynth':14 'grass':3A 'green':1A,2A 'home':5A 'mi':13 'moog':15,17 'mor':20 'of':4A 'on':9C 'pl':19 'powell':7B 'rick':6B 'set':16,18 'switched':8C 'switchedoncountry':11C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-4', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['grins and smiles and giggles and laughs', '1970s electronic', 'why be original']
                                        'tag_date'  1970
                                     'discogstags'  ['electronic', 'folk, world, & country', 'country', 'experimental']

============================== file details ==============================
                                           'mtime'  1628353441.419348  (2021-08-07 18:24:01)
                             'size'  6228634