======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '220'
                                          'artist'  'Foundations'
                                     'text_people'  ''
                                         'release'  'Easy Instr 70s'
                                           'title'  "A Walk Through The Trees (ST Inst. la.60's-ea.70's)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['metalcore', 'hardcore', 'oldies', '60s', 'melodic hardcore']"
                                     'discogstags'  "['hardcore', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '91.3'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Easy Instr 70s'
'TBPM' (BPM (beats per minute))                     '91.3'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "A Walk Through The Trees (ST Inst. la.60's-ea.70's)"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Foundations'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hardcore', 'rock']
'TXXX:lastfmtags'                                   ['metalcore', 'hardcore', 'oldies', '60s', 'melodic hardcore']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.72 dB'
'TXXX:replaygain_track_peak'                        '0.380080'

========================== row from database ==========================
                                              'id'  1532756
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Foundations - A Walk Through The Trees (ST Inst. la.60_s-ea.70_s).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  220
                                           'genre'  funk or soul
                                        'filesize'  5289984
                                           'mtime'  1628357825
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY 70_s la.60_s ea.70_s) funk or soul
                                      'tag_artist'  Foundations
                                     'tag_release'  Easy Instr 70s
                                       'tag_title'  A Walk Through The Trees (ST Inst. la.60's-ea.70's)
                                             'bpm'  91.3
                                    'search_title'  '60':11 '70':14 'a':1 'ea':13 'inst':8,9 'la':10 'la60sea70s':16 's':12,15 'st':6,7 'the':4 'through':3 'trees':5 'walk':2
                                   'search_artist'  'foundations':1
                                  'search_release'  '70s':3 'easy':1 'instr':2
                                     'search_rest'  '60':8 '70':5,13 'ea':12 'ea70':15 'easy':4 'funk':2 'la':7 'la60':10 'or':17 's':6,9,11,14,16 'soul':3 'swing':1
                                    'search_combo'  '60':11A,28 '70':14A,25,33 '70s':20C 'a':1A 'ea':13A,32 'ea70':35 'easy':18C,24 'foundations':17B 'funk':22 'inst':8A,9A 'instr':19C 'la':10A,27 'la60':30 'la60sea70s':16A 'or':37 's':12A,15A,26,29,31,34,36 'soul':23 'st':6A,7A 'swing':21 'the':4A 'through':3A 'trees':5A 'walk':2A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['metalcore', 'hardcore', 'oldies', '60s', 'melodic hardcore']
                                        'tag_date'  1975
                                     'discogstags'  ['hardcore', 'rock']

============================== file details ==============================
                                           'mtime'  1628357824.500191  (2021-08-07 19:37:04)
                             'size'  5289984