======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '152'
                                          'artist'  'Bruce Haack'
                                     'text_people'  ''
                                         'release'  'The Electronic Record For Children'
                                           'title'  'Clapping With Katy'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'space age pop', 'electronic', 'psychedelic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '145.1'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Electronic Record For Children'
'TBPM' (BPM (beats per minute))                     '145.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Clapping With Katy'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bruce Haack'
'TPE2' (Band/orchestra/accompaniment)               'Bruce Haack'
'TPUB' (Publisher)                                  'King Japan'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'space age pop', 'electronic', 'psychedelic', 'experimental']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.25 dB'
'TXXX:replaygain_track_peak'                        '0.546786'

========================== row from database ==========================
                                              'id'  918887
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Bruce Haack/1969 - Bruce Haack - The Electronic Record For Children (Dimension 5) mono [256k]/12 Clapping With Katy.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  152
                                           'genre'  electronic-experimental
                                        'filesize'  4930043
                                           'mtime'  1636916808
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1969 (Dimension 5) mono [256k] 12 electronic experimental
                                      'tag_artist'  Bruce Haack
                                     'tag_release'  The Electronic Record For Children
                                       'tag_title'  Clapping With Katy
                                             'bpm'  145.1
                                    'search_title'  'clapping':1 'katy':3 'with':2
                                   'search_artist'  'bruce':1 'haack':2
                                  'search_release'  'children':5 'electronic':2 'for':4 'record':3 'the':1
                                     'search_rest'  '1969':1 '256k':7,8 '5':4,5 'dimension':2,3 'electronic':9 'experimental':10 'mono':6
                                    'search_combo'  '1969':11 '256k':17,18 '5':14,15 'bruce':4B 'children':10C 'clapping':1A 'dimension':12,13 'electronic':7C,19 'experimental':20 'for':9C 'haack':5B 'katy':3A 'mono':16 'record':8C 'the':6C 'with':2A
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'space age pop', 'electronic', 'psychedelic', 'experimental']
                                        'tag_date'  1969
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636916807.8194869  (2021-11-14 20:06:47)
                             'size'  4930043