======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '155'
                                          'artist'  'Rick Powell'
                                     'text_people'  ''
                                         'release'  'Switched-On-Country (RCA Camden CAS-2398 Stereo)'
                                           'title'  'Green, Green Grass of Home'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-2', 'q-syn-1', '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country;mi-earlysynth-moog'
                                             'bpm'  '121.5'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Switched-On-Country (RCA Camden CAS-2398 Stereo)'
'TBPM' (BPM (beats per minute))                     '121.5'
'TCON' (Content type, a.k.a. Genre)                 ['loc-namerica-country', 'mi-earlysynth-moog']
'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'
'TPE2' (Band/orchestra/accompaniment)               'Rick Powell'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'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'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.29 dB'
'TXXX:replaygain_track_peak'                        '0.971281'

========================== row from database ==========================
                                              'id'  417122
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/311 Rick Powell - Switched on Country/07_Green,_Green_Grass_of_Home.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  155
                                           'genre'  loc-namerica-country;mi-earlysynth-moog
                                        'filesize'  6349877
                                           'mtime'  1621628547
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 311 on 07_Green,_Green_Grass_of_Home loc namerica country;mi earlysynth moog
                                      'tag_artist'  Rick Powell
                                     'tag_release'  Switched-On-Country (RCA Camden CAS-2398 Stereo)
                                       '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'  '2398':9 'camden':7 'cas':8 'cas2398':10 'country':3 'on':2 'rca':5,6 'stereo':11,12 'switched':1 'switchedoncountry':4
                                     'search_rest'  '07':3,9 '311':1 'country':17,19 'earlysynth':21 'grass':6,12 'green':4,5,10,11 'home':8,14 'loc':15 'mi':18,20 'moog':22 'namerica':16 'of':7,13 'on':2
                                    'search_combo'  '07':22,28 '2398':16C '311':20 'camden':14C 'cas':15C 'cas2398':17C 'country':10C,36,38 'earlysynth':40 'grass':3A,25,31 'green':1A,2A,23,24,29,30 'home':5A,27,33 'loc':34 'mi':37,39 'moog':41 'namerica':35 'of':4A,26,32 'on':9C,21 'powell':7B 'rca':12C,13C 'rick':6B 'stereo':18C,19C 'switched':8C 'switchedoncountry':11C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', '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'  []

============================== file details ==============================
                                           'mtime'  1621628546.9964502  (2021-05-21 22:22:26)
                             'size'  6349877