======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '136'
                                          'artist'  'the dave pell singers'
                                     'text_people'  ''
                                         'release'  '60s - 70s Poppy Vocal Stuff'
                                           'title'  'oh calcutta'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-3', "
 "'Q-JZFKS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['bossa nova', 'soft rock', 'sunshine pop', 'free soul', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '145.267'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '60s - 70s Poppy Vocal Stuff'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'oh calcutta'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'the dave pell singers'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['bossa nova', 'soft rock', 'sunshine pop', 'free soul', 'easy listening']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.526454'

========================== row from database ==========================
                                              'id'  1286012
                                            'path'  /data/Music/Bulk/00poprockelectronic/60s Pop/07 the dave pell singers - oh calcutta.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  136
                                           'genre'  funk or soul
                                        'filesize'  3268078
                                           'mtime'  1621630103
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 funk or soul
                                      'tag_artist'  the dave pell singers
                                     'tag_release'  60s - 70s Poppy Vocal Stuff
                                       'tag_title'  oh calcutta
                                             'bpm'  145.267
                                    'search_title'  'calcutta':2 'oh':1
                                   'search_artist'  'dave':2 'pell':3 'singers':4 'the':1
                                  'search_release'  '60s':1 '70s':2 'poppy':3 'stuff':5 'vocal':4
                                     'search_rest'  '00poprockelectronic':1 'funk':2 'or':3 'soul':4
                                    'search_combo'  '00poprockelectronic':12 '60s':7C '70s':8C 'calcutta':2A 'dave':4B 'funk':13 'oh':1A 'or':14 'pell':5B 'poppy':9C 'singers':6B 'soul':15 'stuff':11C 'the':3B 'vocal':10C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['bossa nova', 'soft rock', 'sunshine pop', 'free soul', 'easy listening']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630103.184877  (2021-05-21 22:48:23)
                             'size'  3268078