======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '232'
                                          'artist'  'Sympathy Nervous'
                                     'text_people'  ''
                                         'release'  'Automaticism'
                                           'title'  'Polaroid'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['new wave', 'minimal synth', 'minimal wave', 'all', 'electronic']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '116'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Automaticism'
'TBPM' (BPM (beats per minute))                     '116'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Polaroid'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sympathy Nervous'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['new wave', 'minimal synth', 'minimal wave', 'all', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.605883'

========================== row from database ==========================
                                              'id'  654285
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Minimal Wave/[MW032] Sympathy Nervous - Automaticism (LP, Ltd, Cle) [2011] 320Kbps/04 Polaroid.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  232
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  9303080
                                           'mtime'  1621084946
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Minimal Wave [MW032] (LP, Ltd, Cle) [2011] 320Kbps 04 electronic techno minimal or deephouse
                                      'tag_artist'  Sympathy Nervous
                                     'tag_release'  Automaticism
                                       'tag_title'  Polaroid
                                             'bpm'  116.0
                                    'search_title'  'polaroid':1
                                   'search_artist'  'nervous':2 'sympathy':1
                                  'search_release'  'automaticism':1
                                     'search_rest'  '2011':11,12 '320kbps':13 'cle':9,10 'deephouse':17 'electronic':14 'lp':5,6 'ltd':7,8 'minimal':1 'mw032':3,4 'or':16 'techno':15 'wave':2
                                    'search_combo'  '2011':15,16 '320kbps':17 'automaticism':4C 'cle':13,14 'deephouse':21 'electronic':18 'lp':9,10 'ltd':11,12 'minimal':5 'mw032':7,8 'nervous':3B 'or':20 'polaroid':1A 'sympathy':2B 'techno':19 'wave':6
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['new wave', 'minimal synth', 'minimal wave', 'all', 'electronic']
                                        'tag_date'  2011
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621084946.074457  (2021-05-15 15:22:26)
                             'size'  9303080