======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '90'
                                          'artist'  'Johnny Cash'
                                     'text_people'  'Jack Clement'
                                         'release'  'The Collection - Folsom Prison San Quentin & America :200'
                                           'title'  'Dirty Old Egg Suckin Dog'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
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 "'q-chart-4', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'singer songwritergdchill', 'cover', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '111'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country'
                                             'bpm'  '131.2'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Collection - Folsom Prison San Quentin & America :200'
'TBPM' (BPM (beats per minute))                     '131.2'
'TCOM' (Composer)                                   'Jack Clement'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Dirty Old Egg Suckin Dog'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Cash'
'TPE2' (Band/orchestra/accompaniment)               'Johnny Cash'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '111'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.660078'

========================== row from database ==========================
                                              'id'  1383725
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Johnny Cash_/Folsom Prison/111 - johnny cash - dirty old egg suckin dog.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  90
                                           'genre'  loc-namerica-country
                                        'filesize'  2168910
                                           'mtime'  1621630281
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Cash_ 111 johnny cash dirty old egg suckin dog loc namerica country
                                      'tag_artist'  Johnny Cash
                                     'tag_release'  The Collection - Folsom Prison San Quentin & America :200
                                       'tag_title'  Dirty Old Egg Suckin Dog
                                             'bpm'  131.2
                                    'search_title'  'dirty':1 'dog':5 'egg':3 'old':2 'suckin':4
                                   'search_artist'  'cash':2 'johnny':1
                                  'search_release'  '200':8,9 'america':7 'collection':2 'folsom':3 'prison':4 'quentin':6 'san':5 'the':1
                                     'search_rest'  '00singer':1 '111':5 'cash':4,7 'country':15 'dirty':8 'dog':12 'egg':10 'eos':3 'johnny':6 'loc':13 'namerica':14 'old':9 'songwriter':2 'suckin':11
                                    'search_combo'  '00singer':17 '111':21 '200':15C,16C 'america':14C 'cash':7B,20,23 'collection':9C 'country':31 'dirty':1A,24 'dog':5A,28 'egg':3A,26 'eos':19 'folsom':10C 'johnny':6B,22 'loc':29 'namerica':30 'old':2A,25 'prison':11C 'quentin':13C 'san':12C 'songwriter':18 'suckin':4A,27 'the':8C
                                    'tag_tracknum'  111
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'singer songwritergdchill', 'cover', 'singer songwriter']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630281.0837052  (2021-05-21 22:51:21)
                             'size'  2168910