======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '910'
                                          'artist'  'Tom Erich'
                                     'text_people'  ''
                                         'release'  'Philips P 10026 R'
                                           'title'  "Five O' Clock Medley Part 1 (+ Johnny Meyer Accordeon)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-4', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1952'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '137.013'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Philips P 10026 R'
'TBPM' (BPM (beats per minute))                     '137.013'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1952'
'TIT2' (Title/songname/content description)         "Five O' Clock Medley Part 1 (+ Johnny Meyer Accordeon)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Erich'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.70 dB'
'TXXX:replaygain_track_peak'                        '0.671985'

========================== row from database ==========================
                                              'id'  1510072
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1952/Tom Erich - Five O_ Clock Medley Part 1 (+ Johnny Meyer accordeon) 1952.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  910
                                           'genre'  prerock-unsorted
                                        'filesize'  18218804
                                           'mtime'  1621698149
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1952 O_ accordeon) 1952 prerock unsorted
                                      'tag_artist'  Tom Erich
                                     'tag_release'  Philips P 10026 R
                                       'tag_title'  Five O' Clock Medley Part 1 (+ Johnny Meyer Accordeon)
                                             'bpm'  137.013
                                    'search_title'  '1':7 'accordeon':10,11 'clock':4 'five':1 'johnny':8 'medley':5 'meyer':9 'o':2,3 'part':6
                                   'search_artist'  'erich':2 'tom':1
                                  'search_release'  '10026':3 'p':2 'philips':1 'r':4
                                     'search_rest'  '00oldiepop':5 '1952':6 'accordeon':8,9 'country':4 'exotica':2 'jazz':1 'o':7 'oldies':3 'prerock':10 'unsorted':11
                                    'search_combo'  '00oldiepop':22 '1':7A '10026':16C '1952':23 'accordeon':10A,11A,25,26 'clock':4A 'country':21 'erich':13B 'exotica':19 'five':1A 'jazz':18 'johnny':8A 'medley':5A 'meyer':9A 'o':2A,3A,24 'oldies':20 'p':15C 'part':6A 'philips':14C 'prerock':27 'r':17C 'tom':12B 'unsorted':28
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1952
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698148.6553788  (2021-05-22 17:42:28)
                             'size'  18218804